We recently wrote about how being overweight or obese increases COVID-19 risks. Now, a new study has revealed how Latinx individuals are significantly more likely to test positive for SARS-CoV-2 —, the novel coronavirus that causes COVID-19 — than any other ethnic or racial group. The researchers who conducted the study believe crowded living conditions, plus an economic necessity to continue working outdoors throughout the pandemic have contributed to the higher infection rates among Latinx communities. Furthermore, the researchers say that members of these communities are disproportionately less likely to have health insurance than their peers from other ethnic and racial groups. This reality, the researchers say, has contributed to the disparities we see today. For the study, the researchers analyzed over 35,000 COVID-19 test results from hospitals and outpatient clinics in the Baltimore-Washington area. They found that 16.3% of the tests were positive. Of those positive results, Latinx individuals accounted for 42.6% of the total, followed by black people (17.6%), “others” (17.2%), and white people (8.8%). Another uncovered discrepancy was that Latinx patients who tested positive and were subsequently hospitalized were significantly less likely to have been previously diagnosed with a health condition, something, the researchers suggest, could be due to them having poorer access to healthcare. The research, which is published in JAMA, involved a collaboration between the Johns Hopkins University School of Medicine and the university’s Center for Data Science in Emergency Medicine.
Being obese or overweight increases the chances of someone with COVID-19 experiencing serious illness, complications, and death, new research suggests. Having examined existing studies, Public Health England (PHE) found that carrying excess weight put people at greater risk of requiring hospital admission or intensive care. Furthermore, that risk grew as weight increased. The findings of the PHE evidence review come ahead of an expected UK Government announcement relating to new measures to curb obesity in the country. At present, the UK has some of the highest obesity levels in Europe, with almost two-thirds of adults now either overweight or obese. Many believe that the coronavirus pandemic and subsequent lockdown have served to exacerbate many people’s weight issues, with individuals stuck at home for prolonged periods and unable to carry out their usual exercise regimes. The findings of the evidence review will be of particular concern to groups that are already at higher risk of COVID-related complications, such as older people, black and ethnic minorities, and those living in more deprived areas. Dr Alison Tedstone, chief nutritionist at Public Health England, said the current evidence was clear: “Losing weight can bring huge benefits for health - and may also help protect against the health risks of Covid-19," she said. "The case for action on obesity has never been stronger.”
Young people with COVID-19 who are obese are at greater risk of being hospitalised and experiencing more severe symptoms, new research has found. According to the study of 3,615 patients who had tested positive for COVID-19, while being overweight didn’t appear to have any negative impact on individuals aged 60+, it did in younger patients. Compared to those with a healthy Body Mass Index (BMI), which is less than 30, patients with BMIs of 30-34 were twice as likely to need hospitalisation and twice as likely to need acute care. Meanwhile, while younger COVID-19 patients with BMIs of 35 or higher were also found to be twice as likely to require hospitalisation, they were three times more likely to end up in the intensive care unit. One of the study co-authors, Jennifer Lighter, MD, a hospital epidemiologist in New York City, said the findings are significant, especially in the US where 42% of the population has a BMI over 30 and is considered obese. “Our hospital was one of the first to find the association between obesity and coronavirus, but I think it will soon become very common,” Lighter said. It is important for frontline health workers to understand how being obese potentially changes a patient’s clinical outlook and consider such patients as high-risk.
If there wasn’t already enough motivation for overweight men to shed some pounds, new research suggests losing weight could help lower the risk of advanced prostate cancer. Prostate cancer is the second most common cancer in men globally, with approximately 1.3 million new cases in 2018 alone. Fortunately, if discovered early enough, prostate cancer has a relatively low mortality rate, with 96% of patients surviving for 15 years or more following an early stage diagnosis. However, as with any cancer, prevention is better than cure, and survival rates for advanced prostate cancer are very poor. That’s why a new, large-scale analysis of 15 studies involving nearly 831,000 men is significant. It found that having a Body Mass Index (BMI) of above 25 during middle to late adulthood was associated with the highest risk for advanced prostate cancer. Furthermore, the researchers from the Mailman School of Public Health at Columbia University found that having a larger waist size was also associated with an increased risk of advanced prostate cancer and death. “These study results show that risk for advanced prostate cancer can be decreased by maintaining a 'healthy' weight, which is in line with guidelines by the American Cancer Society and World Cancer Research Fund,” said study author Jeanine Genkinger, an associate professor of epidemiology at the Mailman School of Public Health The study was published March 4 in the Annals of Oncology.
Gaining weight in later years has a detrimental impact on lung health, a new study suggests. People’s lungs naturally deteriorate as they age and lose functionality as the years go by. But now new research has linked moderate or significant weight gain to an even sharper decline in lung health. According to the study of 3,700 individuals in Europe and Australia, who were recruited between the ages of 20 and 44, and were studied for 20 years, people who gained weight throughout the course of the study – regardless of whether they were a healthy weight or overweight/obese to begin with – had accelerated lung function decline. Furthermore, overweight/obese individuals who lost weight during the study saw their lung functionality decline slow. Publishing their findings in the journal Thorax, the researchers said large amounts of fat in the abdomen and chest can limit the space lungs have when people inhale. It was also suggested that fat produces inflammatory chemicals that can reduce the diameter of airways and damage lungs. Speaking about the findings of the research, study leader Judith Garcia Aymerich, head of the non-communicable diseases and environment program at Barcelona Institute for Global Health (ISGlobal), said: “Although previous research has shown that weight gain is linked to lung function decline, ours is the first study to analyze such a varied population sample over a longer period of time.”
A new study has revealed five bad health habits which, if avoided, could help you live significantly longer. While the habits themselves are nothing we haven’t heard before, the findings of the study are important as they highlight just how much of an impact the five factors can have on lifespan. So if you want to live years longer, avoid these five behaviours: smoking, not exercising, being overweight, drinking too much alcohol and eating an unhealthy diet. Specifically, the study found that women aged 50 who avoided all five risk factors lived 14 years longer than women who did not. Among men, the difference in lifespan was 12 years. Publishing the study findings in the BMJ, senior author Dr. Frank Hu, who chairs the department of nutrition at Harvard T.H. Chan School of Public Health, said: “We found that following a healthy lifestyle can substantially extend the years a person lives disease-free.” Importantly, the results held true even after adjusting the data for age, ethnicity, family medical history and other potentially influential factors – emphasising that everyone stands to benefit from avoiding these five unhealthy habits. Finally, the research also revealed that the five habits had a positive impact for people diagnosed with a disease during the study period. For example, individuals who developed cancer lived an additional 23 years if they adopted four of the five healthy practices. In contrast, among those who didn't change, half only survived an additional 11 years. The same patterns were witnessed for both heart disease and diabetes.
Sleep apnoea is a disorder that causes some individuals to experience pauses in their breathing while they are sleeping, resulting in them gasping for breath. Said pauses can last anywhere from a few seconds right up to a few minutes. But while sleep apnoea can be alleviated with certain measures, including wearing oral appliances at bedtime, its exact cause has remained open to debate. Now, a new study has revealed that having a fatty tongue could play a part. According to the research by a team from the Perelman School of Medicine in Philadelphia, larger, fattier tongues – which are more common among obese individuals – could be a main driver of sleep apnoea. That’s why when overweight and obese people shed the pounds, including fat in their tongues, any sleep apnoea they’ve been experiencing also tends to improve. “You talk, eat and breathe with your tongue - so why is fat deposited there?" said study author Dr Richard Schwab, of Perelman School of Medicine. “It's not clear why - it could be genetic or environmental - but the less fat there is, the less likely the tongue is to collapse during sleep.” The researchers now plan to discover which low-fat diets (if any) are particularly good at reducing fat in the tongue.
Experts say that food label warnings about the amount of physical exercise needed to burn off the calories contained in the product work. According to the researchers from Loughborough University in the UK, who looked at 14 separate studies to reach their conclusions, a simple label advising the consumer that it would take four hours to walk off the calories contained in a pizza, or 22 minutes of running to burn off a chocolate bar are effective in making people think twice about purchasing certain foods. They say the labels help people indulge less and could encourage healthier eating habits to fight obesity. Right now, it is estimated that two-thirds of the UK adult population are overweight or obese. Publishing their findings in the Journal of Epidemiology and Community Health, the researchers say this simple type of labelling could help cut about 200 calories from a person's daily average intake. The reason it works is because people don’t really appreciate calories when they see them as just numbers. But by elaborating and highlighting how much exercise is needed to burn off a particular food product, the consumer is able to make a much more informed decision. Lead researcher Prof Amanda Daley said: “We know that the public routinely underestimate the number of calories that are in foods. So if you buy a chocolate muffin and it contains 500 calories, for example, then that's about 50 minutes of running.”
New research suggests cancer patients are at higher risk of dying from cardiovascular disease than the general population. According to the study, the results of which are published in the European Heart Journal, more than one in 10 cancer survivors die from heart and blood vessel problems, rather than their initial illness. Among the 3,234,256 cancer patients studied for the research, 38% died from cancer, while 11% died from cardiovascular diseases. Among the deaths from cardiovascular diseases, 76% were due to heart disease. The risk of dying from cardiovascular disease was also highest in the first year after a patient’s cancer diagnosis and among patients younger than 35. Among those cancer patients diagnosed before the age of 55 and who went on to survive their illness, the risk of dying from cardiovascular disease was more than 10 times higher than that for the general population. Meanwhile, patients with breast, prostate or bladder cancer were most likely to die from heart disease – but this is simply because these are the most common types of cancer. It is still unclear as to why cancer patients have a seemingly higher risk of heart disease, but their treatment itself or lifestyle factors, such as being overweight, drinking too much and not exercising, could be to blame, experts say.
Type 2 diabetes is a chronic condition that occurs when a person’s body ineffectively uses insulin. It is the most common form of diabetes, accounting for 90% to 95% of the more than 30 million diabetes cases in America today. Despite rising numbers, it is estimated that around 80% of new type 2 diabetes diagnoses could be prevented with lifestyle changes and more education. But while it’s been known for some time that when added to a genetic predisposition, factors like being overweight and a lack of physical activity increase a person’s risk of developing type 2 diabetes, very little research has been done to determine the impact of other environmental factors. That’s why a new study by a team from the University of Illinois at Chicago (UIC) School of Public Health which set out to determine if type 2 diabetes risk changes between urban and rural environments is interesting. According to the research - which involved examining 3,134 people across the United States - the quality of the air, water, and land, as well as numerous sociodemographic factors, such as education, average household income, violent crime rates, or property crime rates has an impact on a person’s type 2 diabetes risk. So-called ‘built domain factors’ were also used. These included how many fast-food restaurants were in a particular area; how many fatal accidents occurred, and how many highways, roadways, or public housing units there were. The research found that a poorer environmental quality was linked with a higher prevalence of type 2 diabetes. Specifically, inferior air quality and built and sociodemographic factors were associated with a higher risk of diabetes in rural areas, while in urban areas, only air and sociodemographic factors were associated with diabetes risk. “There might be something happening in rural areas that is different than in urban areas. Our findings suggest that environmental exposures may be a bigger factor in rural counties than in urban areas in the U.S.,” explains Dr. Jyotsna Jagai, lead author.
Obesity is worryingly common across the world today. World Health Organization statistics from 2018 show that global obesity has almost tripled since 1975 and most of the world’s population now live in a country where being overweight or obese kills more people than being underweight. But while obesity is known to increase a person’s risk of certain health conditions, new research has revealed that it does not seemingly affect men and women in the same way. According to the study from Oxford University in the United Kingdom, the findings of which are summarized in the journal PLOS Genetics, the risks of developing different health problems as a result of being obese are different for men and women. For example, obese women are at higher risk of developing type-2 diabetes than men. Meanwhile, obese men have a higher risk of chronic kidney disease and chronic obstructive pulmonary disease. The team says their findings add to the existing evidence that preventing and treating obesity is a crucial step in countering the emergence of other health conditions. “This study shows just how harmful carrying excess weight can be to human health, and that women and men may experience different diseases as a result,” said first author Dr. Jenny Censin. For the study, the team from Oxford University analyzed genetic information and three different obesity measures in a cohort of 195,041 men and 228,466 women.
People who take daily blood pressure medication should take it just before bedtime to get the most out of it, researchers say. Writing in the European Heart Journal, the researchers say that while it may sound like a very simple tip, it’s one that could save lives. The reason why taking such medication at bedtime is more beneficial is because our body clocks alter the way our bodies respond to it. At night, our blood pressure is typically lower than it is during the day. However, if for some reason our blood pressure does not dip and remains consistently high, our chances of having a stroke or heart attack significantly increase. The study found that patients who took their daily blood pressure medication before bedtime had significantly lower average blood pressure both at night and during the day than those who took their medication in the morning. Their blood pressure also dipped more at night. Lead researcher Prof Ramon Hermida, from the University of Vigo in Spain, said doctors should consider recommending their patients take their daily blood pressure medication at night going forward – especially as it’s “totally cost-free. It might save a lot of lives. “Current guidelines on the treatment of hypertension do not recommend any preferred treatment time. Morning ingestion has been the most common recommendation by physicians based on the misleading goal of reducing morning blood pressure levels. “The results of this study show that patients who routinely take their anti-hypertensive medication at bedtime, as opposed to when they wake up, have better-controlled blood pressure and, most importantly, a significantly decreased risk of death or illness from heart and blood vessel problems.” The next step is to determine whether the findings of the study apply to different brands of blood pressure medication. Lifestyle factors that have an impact on blood pressure: Smoking Drinking too much alcohol Being overweight Not doing enough exercise Eating too much salt
Researchers have found fat in overweight and obese people’s lungs. It’s the first time such a discovery has been made and could provide important clues as to why overweight and obese people have an increased risk of asthma. For the research, a team from Australia analysed lung samples from 52 deceased individuals. They found the amount of fat present increased in line with Body Mass Index (BMI). Being overweight/obese is already linked to having asthma, but it was previously thought that excess weight pressing on the lungs was the main reason for this. However, the Australian researchers say fatty tissue in the walls of airways takes up space and causes inflammation, which can lead to wheezing and asthma. Speaking about the findings of the research, which are published in the European Respiratory Journal, Dr Peter Noble from the University of Western Australia said: “We’ve found that excess fat accumulates in the airway walls where it takes up space and seems to increase inflammation within the lungs. “We think this is causing a thickening of the airways that limits the flow of air in and out of the lungs, and that could at least partly explain an increase in asthma symptoms.” Experts say that more research is now needed to find out whether the build-up of fatty tissue could be reversed through weight loss. In the meantime, asthma patients should be supported to achieve a healthy weight.
A leading UK cancer charity has warned that obesity now causes more cases of four common cancers than smoking. According to Cancer Research UK, bowel, kidney, ovarian and liver cancers are more likely to be caused by being overweight than by smoking tobacco. The warning is particularly concerning as obese people outnumber smokers by two to one in the UK, which means millions of people are at risk of developing any of these cancers simply because they are overweight. Despite the fact that smoking remains the number one preventable cause of cancer in the UK and causes more cases of cancer than being overweight each year (54,300 vs. 22,800), for the four cancers previously mentioned, obesity causes more. However, Cancer Research UK’s latest billboard campaign highlighting the risks associated with being overweight has been accused of fat-shaming. And it’s not the first time the charity has been picked up for this either. Nevertheless, the charity remains adamant that outlining the risks of being overweight when it comes to cancer is an important step. Speaking about the Cancer Research UK warning, the British Medical Association said: “While we are very much aware of the health risks associated with smoking, less effort has been thrown behind tackling obesity, which is now a major cause of cancer.”
Children whose parents divorce are more likely to get fat than their peers whose parents stay together, new research has revealed. According to the study by researchers from the London School of Economics and Political Science, children whose parents divorce before they are six are particularly impacted. For the study, the researchers analysed data collected by the UK Millennium Cohort Study on 7,574 children born between 2000 and 2002. Of the children involved, 1,573 (around one in five) had witnessed their parents divorce by the time they were 11. These kids gained more weight in the 24-month period following their parents’ divorce than their peers whose parents remained together. Furthermore, the kids whose parents had divorced were also more likely to become overweight or obese within 36 months of their parents separating. The authors of the paper say their findings underline how much of an impact a divorce can have on children and that parental separation is “a process with potentially long-lasting consequences”. As a result, the authors are calling for more health help and support to be given to families going through a break-up. The paper also offers some reasons why children put on weight following a divorce, namely: There’s often less money in separated households for fresh fruit and vegetables Parents having to work longer hours, so there’s less time to prepare nutritious food There’s often less money for extra-curricular activities, including sport Parents with less time and energy to promote healthy eating habits in their children Emotional problems leading to parents overfeeding their children and kids eating too much sugary and fatty food
With more than 37% of American adults living with obesity, and more than 32% overweight, any strategies for curbing weight gain should be closely examined to see if they could help the situation. Now, new research suggests that weighing ourselves every day could effectively prevent weight gain – especially over the usually over-indulgent holiday period. Published in the journal Obesity, the research was led by Jamie Cooper, Ph.D., associate professor at the University of Georgia in Athens. For the study, Cooper and colleagues recruited 111 adults aged between 18 and 65. Each participant was told to try and maintain their starting weight during the holiday season, but wasn’t given any advice on how to do this. Instead, the participants were all told to weigh themselves – some daily and others less frequently. At the end of the 14-week trial, the participants who weighed themselves every day either maintained their starting weight or actually lost weight. In contrast, the participants who did not weigh themselves every day all gained weight. The researchers suggest that by weighing themselves every day and being able to exercise more/eat less to combat small weight increases, those participants were able to maintain their starting weight or lose weight. Speaking about the findings of the research, Study co-author Michelle vanDellen, said: “People are really sensitive to discrepancies or differences between their current selves and their standard or goal. When they see that discrepancy, it tends to lead to behavioural change. Daily self-weighing ends up doing that for people in a really clear way.”
A major study has found that the UK has a big obesity problem, and that there are severe health implications for people who are even just a little overweight. According to the research, which was funded by healthcare firm Novo Nordisk, individuals with a Body Mass Index (BMI) of 30-35 were 70% more likely to develop heart failure than their healthy weight peers (18.5-25 BMI). Furthermore, the study of 2.8 million adults also showed that people who were even slightly overweight were twice as likely to develop Type 2 diabetes. The study, which is due to be presented at the European Congress on Obesity (ECO) in Glasgow, also revealed: The risk of Type 2 diabetes for people with a BMI of 35-40 was almost nine times higher People with severe obesity (BMI of 40-45) were 12 times more likely to develop Type 2 diabetes People with severe obesity also had triple the risk of heart failure, high blood pressure, and dyslipidaemia (elevated levels of total or low-density lipoprotein (LDL) cholesterol levels, or low levels of high-density lipoprotein (HDL) cholesterol) A BMI of 40-45 was also linked with a 50% higher risk of dying prematurely from any cause Speaking about the findings of the study, Public Health England said “sustained action” was needed to tackle obesity.
As obesity rates across the world continue to rise, understanding exactly why we put on weight has never been more important. That’s why the findings of a new study, which looked at whether there is an association between when we eat and how much weight we gain, could be very significant. Presenting their findings at the ENDO 2019 conference, which took place in New Orleans, the scientists from the University of Colorado in Denver said there is a link between eating later in the day and having a higher BMI, as well as more body fat. For the study, 31 adults who were either overweight or obese and had an average age of 36 years were closely monitored to assess their sleep, levels of activity, and diet. Interestingly, the study also showed that the participants who ate later in the day still had an average of 7 hours sleep each night, suggesting that lack of sleep may not promote obesity after all. Speaking about the findings of the study, Dr. Adnin Zaman, lead author, said “These findings support our overall study, which will look at whether restricting the eating window to earlier on in the day will lower obesity risk.”
Following a low-calorie diet – even for just a few months – can arrest type-2 diabetes for at least two years, new research suggests. The findings of the study highlight that type-2 diabetes might not necessarily be the life sentence we previously thought. Nearly 300 people with type-2 diabetes in Scotland and Tyneside (in the UK) participated in the study. Half were given standard diabetes care, while the other half were put on a structured weight management programme. After 12 months, 46% of those on the low-calorie programme had successfully reversed their type-2 diabetes. In comparison, just 4% of the study participants given the standard treatment had gone into remission. Two years later, 36% of the study participants on the structured weight management programme were still in remission. “People with type 2 diabetes and healthcare professionals have told us their top research priority is: ‘Can the condition be reversed or cured?’ We can now say, with respect to reversal, that yes it can. Now we must focus on helping people maintain their weight loss and stay in remission for life,” said Prof Mike Lean from Glasgow University, who led the study with Taylor. Type-2 diabetes causes blood sugar levels to rise and can lead to serious complications such as amputations, visual problems and heart disease. It is thought that one in 16 adults in the UK is currently living with type-2 diabetes, a condition that is fuelled by obesity. [Related reading: Why being overweight increases your risk of cancer]
Christmas Day is less than two weeks away and that means many of us will soon be gorging ourselves on all sorts of culinary delights. It’s a reality that will see a lot of people piling on the pounds this month ahead of the inevitable January fitness drive. But what if there was a simple way to limit the impact of Christmas feasting on our waistlines? A new study by the Universities of Birmingham and Loughborough in the UK suggests there is. According to the study involving 272 volunteers, regular home weigh-ins coupled with simple weight-loss tips can prevent people from putting on weight over the festive period. For the study, the volunteers were divided into two groups. One group weighed themselves regularly and were given dietary advice, including information on how many calories they needed to burn to negate Christmas food. The other group didn’t weight themselves and were only given a small amount of healthy lifestyle advice. The group that weighed themselves and had access to the additional information weighed 0.49kg less than the "comparison" group come the end of the study. Study lead author, Frances Mason, of the University of Birmingham's Institute of Applied Health Research, said “People gain a kilo of weight on average annually. Often this weight gain happens at Christmas, and is never fully lost. This could possibly be a factor driving the obesity epidemic.” In other words, by simply keeping track of your weight and understanding the impact the foods you are eating are having on your waistline, you stand a better chance of avoiding weight gain at a time of year that’s traditionally associated with piling on the pounds. [Related reading: Why being overweight increases your risk of cancer]
Strength training exercises benefit the heart more than aerobic activities, such as walking and cycling, new research suggests. The survey of more than 4,000 American adults found that static exercise, like lifting weights, is more effective at reducing the risk of heart disease than cardiovascular exercise. Specifically, while undertaking both static and dynamic exercise was associated with a 30% to 70% reduction of cardiovascular risk factors, the link was strongest for younger individuals who did static exercises. Nevertheless, any amount of exercise brings benefits and doing both static and dynamic types is still better than focussing on just one kind, the researchers from St. George's University in St. George's, Grenada said. Speaking about the findings of the research, Dr. Maia P. Smith, assistant professor at the Department of Public Health and Preventive Medicine at St. George's University, said: “Both strength training and aerobic activity appeared to be heart healthy, even in small amounts, at the population level.” Current American Heart Association (AHA) guidelines recommend that American adults should undertake at least 150 minutes of heart-pumping physical activity every week. The same guidelines also stipulate that said activity should be spread across the week and not completed in just one or two days. Are you doing enough physical activity each week? If not, you could be increasing your risk of cardiovascular disease. [Related reading: Why being overweight increases your risk of cancer]
So-called “freakshakes” (milkshakes that contain chocolates, sweets, cake, cream, sauce and more) should be banned because they have “grotesque levels of sugar and calories,” a UK charity has said. Action on Sugar, a charity concerned with sugar and its effects on our health, has called for the belt-busting creations to be removed from sale, following a survey it conducted. For the study, the charity surveyed milkshakes sold in restaurants and fast food shops across the UK to see how much sugar and how many calories they contained. Topping the survey (not in a good way) was the Toby Carvery Unicorn Freakshake, which contains an eye-watering 39 teaspoons of sugar and 1,280 calories. That’s more than half the recommended number of daily calories for an adult and over six times the amount of daily sugar for a seven to 10-year-old. Many of the milkshakes looked at by Action on Sugar contained more than half the recommended daily amount of calories for an adult. More worryingly, out of the 46 products looked at by the charity, all would be labelled red/high for excessive levels of sugar per serving. Speaking about the findings of the survey, Action on Sugar chairman, Graham MacGregor, said: “These very high calorie drinks, if consumed on a daily basis, would result in children becoming obese and suffering from tooth decay - that is not acceptable. “These high calorie milkshakes need to be reduced immediately below 300kcal per serving.” [Related reading: Why being overweight increases your risk of cancer]
We are often told that being overweight increases our risk of cancer. In fact, in the UK, obesity is the biggest preventable cause of cancer after smoking, according to Cancer Research UK. But why does being overweight increase a person’s likelihood of developing cancer? A group of scientists say they now know. The team from Trinity College Dublin say the reason overweight people are at greater risk of developing cancer is because a certain cell in the body that’s used to destroy cancer gets clogged with fat and stops working as a result. Publishing their findings in the Nature Immunology journal, the team said they were able to show that the body’s natural cancer-fighting cells get clogged by fat. They are hopeful that new drug treatments can be developed that will reverse the effects and restore the cancer-killing ability of said cells. Until then, though, the best advice remains to stay a healthy weight, stop smoking and cut down on alcohol. Speaking about the findings of the research, Dr Leo Carlin, from the Cancer Research UK Beatson Institute, said: “Although we know that obesity increases the risk of 13 different types of cancer, we still don't fully understand the mechanisms underlying the link. “This study reveals how fat molecules prevent immune cells from properly positioning their tumour-killing machinery, and provides new avenues to investigate treatments.” [Related reading: Major study finds eating processed meat raises risk of breast cancer]
A new study, one of the largest of its kind, suggests being the wrong weight i.e. overweight or underweight cold knock four years off a person’s life expectancy. According to the study, the findings of which were published in the Lancet Diabetes and Endocrinology journal, from the age of 40, people towards the higher end of the healthy Body Mass Index (BMI) range (a healthy BMI ranges from 18.5 to 25) had the lowest risk of dying from disease, including cancer and heart disease. In contrast, individuals who had BMI scores of less than 18.5 or more than 30 had life expectancies that were 4.4 years and 3.85 years shorter respectively. BMI scores, which are calculated by dividing a person’s weight (in kilograms) by their height (in metres squared), are still considered by health professionals to be the simplest and most accurate way to work out if someone is overweight or underweight. For the population-based cohort study, researchers analysed anonymised data on 3.6 million adults from the U.K. Clinical Practice Research Datalink (CPRD). Dr Krishnan Bhaskaran, lead author of the study, said: “The most striking thing about our findings was how widely BMI was linked to different causes of death. BMI was associated with deaths from nearly all major causes.” He added that the research reinforces the importance of maintaining a healthy body weight. Perhaps the most interesting finding is that people who have low BMI scores are at as much risk, if not more, of reducing their life expectancies.
By 2043, obesity will surpass smoking to be the biggest preventable cause of cancer in UK women. That’s one of the shocking new predictions to come out of a report by Cancer Research UK. At present, around 7% of cancers in women are linked to being overweight and obese, while 12% are said to be caused by smoking. But as the number of individuals who smoke continues to fall and obesity rates continue to rise, the UK cancer charity believes that gap will completely disappear over the next 25 years (assuming current trends continue). In fact, by 2035, the percentage of cancers caused by smoking and by carrying excess weight will almost be equal (25,000 cancer cases each year related to smoking vs. 23,000 related to being overweight). However, after just another eight years (by 2043), being overweight and obese is likely to be linked to even more cases of cancer in women than smoking. Interestingly, the cancer charity says that obesity will not overtake smoking as the leading cause of cancer in men until some time later. The reason for this, though, is simply because more men than women smoke. While obesity is more prevalent among men too, it is thought to be a greater catalyst in women for developing cancer. Professor Linda Bauld, Cancer Research UK's prevention expert, said the UK government must act now to stem the tide of obesity-related cancers. “That's why we are raising awareness of the link between cancer and obesity and calling for measures to protect children, like a ban on junk food adverts before 9pm and for restrictions on price promotions of 'less healthy' products,” she said. Smoking-related cancers include: acute myeloid leukaemia lung bladder bowel cervical pancreatic stomach Obesity-related cancers include: bowel gall bladder kidney liver breast ovarian thyroid
Some of us turn to food for comfort when we are feeling emotional or stressed. Likewise, some of us cut back on food when we are feeling upset. But they are habits that could be influencing our children too. That’s because new research by University College London has found that children who eat more or less when stressed or upset have learnt the behaviour rather than inherited it, suggesting home environments are the primary cause of emotional eating. Parental acts such as giving children their favourite food when they are feeling upset have been highlighted as potential reasons for the habits forming. But UK-based eating disorder charity Beat says parents shouldn’t be blamed for their children’s eating issues. "Eating disorders are complex mental illnesses and never have one sole cause," the charity said. The study, which was published in the journal Pediatric Obesity, analysed 398 four-year-old British twins. Half came from families with obese parents and half from parents with a healthy weight. The parents were asked questions about their children’s eating habits, including their tendencies to emotionally eat. The researchers compared the questionnaire data relating to eating disorders between identical and non-identical twins and found very little difference between the two, which suggests environment plays a bigger role than genes.
Have you ever encountered someone who calls themself ‘fat but fit’? It’s not uncommon to meet people who are clearly overweight, yet not perturbed by their situation because they consider themselves to be fit and healthy. However, a large study conducted in America has found that women who are overweight or obese but otherwise healthy are still at an increased risk of cardiovascular disease (CVD). For the study, researchers from the German Institute of Human Nutrition Potsdam-Rehbruecke tracked the health of some 90,257 women in the US over a 30-year period. They found that women who were overweight or obese, but had none of the typical cardiovascular risk factors, such as high blood pressure, excess cholesterol and diabetes, were 20% and 39% more likely to develop cardiovascular disease than their normal weight and metabolically healthy peers. Speaking about the findings of the study, Prof Matthias Schulze, who led it, said: "Our large cohort study confirms that metabolically healthy obesity is not a harmless condition, and even women who remain free of metabolic diseases for decades face an increased risk of cardiovascular events.” The study also found women who were of normal weight, but metabolically unhealthy, were over two-times more likely to develop cardiovascular disease than their peers of the same weight who were metabolically healthy. Jeremy Pearson, associate medical director at the British Heart Foundation, added: "This large scale study confirms that obesity, even if unaccompanied by other warning signs, increases risk of cardiovascular disease in women."
A new study has revealed that many people in England are unsure about cancer risk factors and often incorrectly identify fake cancer causes. The survey of 1,330 people found that drinking from plastic bottles and using microwave ovens are two of the fake cancer causes people often cite. The good news is that 88% of people surveyed correctly identified smoking as a major cancer risk factor, while 80% picked passive smoking and 60% said sunburn were also causes of cancer - all of which have been proven. According to Cancer Research UK, smoking, overexposure to UV radiation and being overweight are the biggest preventable causes of cancer. In fact, the charity says that about four in 10 cases of cancer could be prevented with lifestyle changes and people need the right information to help them "separate the wheat from the chaff". Researchers from University College London and the University of Leeds conducted the survey and discovered that more than 40% of participants wrongly thought that stress and food additives caused cancer. Dr Samuel Smith from the University of Leeds said: "It's worrying to see so many people endorse risk factors for which there is no convincing evidence. "Compared to past research, it appears the number of people believing in unproven causes of cancer has increased since the start of the century, which could be a result of changes to how we access news and information through the internet and social media." Clare Hyde, from Cancer Research UK, said: "There is no guarantee against getting cancer - but by knowing the biggest risk factors we can stack the odds in our favour to help reduce our individual risk of the disease, rather than wasting time worrying about fake news."
One in eight middle-aged UK adults is at risk of developing cirrhosis of the liver, liver failure and death because they have a potentially serious form of liver disease. The primary cause of this disease? Being overweight, according to new research. Scans of almost 3,000 people from the UK Biobank research project showed that 12% had inflamed, fatty livers. What’s particularly alarming is the silent nature of this disease epidemic, with symptoms often not presenting themselves until permanent damage has been done. However, the condition is reversible if caught in time. The good news is that a new type of MRI scan is showing lots of promise, offering a non-invasive way to evaluate the nature and severity of liver disease. Developed by Perspectum Diagnositics, a spin-off company from the University of Oxford, the new scan utilises smart health technology called LiverMultiScan. Dr Rajarshi Banerjee, CEO of Perspectum Diagnostics said: "LiverMultiScan is a great example of a smart health technology discovered and developed by UK clinicians and scientists with clear benefits for patients, the NHS, and taxpayers. Until now, needle biopsies have been the gold standard for assessing liver disease, but they are costly, invasive, painful and carry some health risks. Meanwhile, LiverMultiScan can be used in any MRI scanner, but it is not part of routine practice yet. David Breen, associate professor of radiology at University Hospital Southampton, said: "The scan gives a map of the entire liver as opposed to a needle-core biopsy which samples just one area and can be unpleasant. "It also allows us to re-scan patients over time and see if they improve."
As part of a new obesity drive, Public Health England is telling people in the UK to “get on a diet” and wants to cut portion sizes of some of the nation’s most popular foods. Pizzas, ready meals, takeaways and processed meat will all be targeted as part of the initiative to cut calorie consumption by 20% by 2024. In addition, the government agency has called on the food industry to start using healthier ingredients and encourage people to choose lower calorie foods. The drive to eat healthier will not only improve the health of the nation, but also reduce the burden on the NHS associated with obesity-related illnesses. Public Health England says the cost per year of obesity to the NHS is £6 billion. Combined with the sugar reduction programme that came into effect last year and the sugary drinks levy which comes into force next month, this new initiative will also help reduce the number of calories consumed by children in the UK. Talking about the new steps, Public Heath England chief executive Duncan Selbie said: "Britain needs to go on a diet. Children and adults routinely eat too many calories, and it's why so many are overweight or obese." Food manufacturers, supermarkets, takeaways and fast-food outlets have all been told they need to reduce the calories in the foods such as crisps and savoury snacks, cooking sauces and dressings, ready meals and takeaways, and food-to-go like sandwiches. If these companies do not listen to PHE, the agency said it would be willing to ask the government to legislate. Guidelines suggest that women eat no more than 2,000 calories a day, while men should limit themselves to 2,500.
People who are overweight or obese will often do anything to help them lose weight and that includes taking food supplements, slimming teas and other so-called weight loss drugs. But now the UK’s medicines watchdog has issued a warning against the use of slimming pills bought online as they can cause serious health problems. A survey of 1,800 slimmers by the Medicines and Healthcare products Regulatory Agency (MHRA) and Slimming World found that one in three had bought weight loss pills online and two-thirds had experienced side-effects. When quizzed about why they had purchased such drugs online, 40% said it was because they had not wanted to speak to a GP or pharmacist. Some of the side-effects associated with slimming bills bought online include heart problems, blurred vision and diarrhoea. Some even contain banned ingredients. The MHRS has stressed that people should always go to their GPs for advice in the first instance. As part of its #FakeMeds campaign, the agency has also warned that buying from websites also increases the risk of being ripped off or having their identity stolen. MHRA senior policy manager Lynda Scammell said: "Quick fixes for losing weight may have serious health consequences in the short or long term, including organ failure and death. "It's essential you know what you're buying online and what the risks are. "If you don't, your weight could end up being the least of your worries."
Overweight or obese women may not detect cancerous breast lumps until they are much larger and more difficult to treat, a Swedish study has found. Researchers from the Karolinksa Institute studied more than 2,000 women who developed breast cancer between 2001 and 2008, all of who had been receiving mammograms every 18 months to two years, as is standard in Sweden. They found that women with higher body mass indexes (BMIs) were more likely to have a larger tumour when detected than women who were slimmer. Lead author of the study, Fredrik Strand, said this was either because the tumours were harder to detect because overweight women have larger breasts or because their tumours grew faster. Women who are overweight are already at greater risk of developing breast cancer and, unfortunately, larger tumours carry a worse prognosis. Therefore, these women may need more frequent mammograms to help spot tumours early, say the researchers. Women who are judged to be at greater risk of developing breast cancer – such as those with a family history – are already offered more frequent screening. Speaking about the findings of the study, Strand said: “Our study suggests that when a clinician presents the pros and cons of breast cancer screening to the patient, having high BMI should be an important 'pro' argument”.
People who are overweight or obese, despite appearing medically healthy, are still at increased risk of heart disease, experts warn. The notion that people can be ‘fat but fit’ is being challenged by research published in the European Heart Journal. According to the researchers from Imperial College London and the University of Cambridge, who studied health data relating to more than half a million people in 10 European countries, weight is still a heart disease risk factor even if someone has normal blood pressure, cholesterol and blood sugar levels. The study found that people who appeared healthy, with healthy blood pressure, cholesterol and blood sugar readings, were still 28% more likely to develop heart disease than individuals with health bodyweights. Even more at risk were people who were overweight or obese and had high blood pressure, cholesterol and blood sugar levels. Dr Ioanna Tzoulaki, from Imperial's School of Public Health, said: "I think there is no longer this concept of healthy obese. "If anything, our study shows that people with excess weight who might be classed as 'healthy' haven't yet developed an unhealthy metabolic profile. "That comes later in the timeline, then they have an event, such as a heart attack”. So the advice if you want to maintain a healthy heart is to watch your weight, even if you think you are fit.
Children who have TVs in their bedrooms are more likely to be overweight than those who don’t, according to new research. Published in the International Journal of Obesity, the study by scientists from University College London analysed data from more than 12,000 children in the UK. They found that girls in particular were more likely to put on weight the longer they spent watching TV. The scientists found more than 50% of the children had TVs in their bedrooms at the age of seven. Interestingly, girls who had TVs in their bedrooms at the age of seven were 30% more likely to be overweight by the time they were 11, compared to kids who did not have TVs in their bedrooms. For boys, the risk was slightly less at 20%. While the link between TVs and being overweight isn’t fully known, the researchers believe it is due to the children getting less sleep and snacking while they are in front of their TVs. Researcher Dr Anja Heilmann said: "Our study shows there is clear link between having a TV in the bedroom as a young child and being overweight a few years later." The scientists behind the research are now calling for more studies to see if similar patterns exist with laptops and mobile phones.
Men with waists over 40 inches and women with waists over 35 inches are at greater risk of certain cancers, as well as type 2 diabetes. That’s the message to come out of a study by scientists at the International Agency for Research on Cancer (IARC), which is an arm of the World Health Organisation. According to Dr Heinz Freisling, the lead author of the study published in the British Journal of Cancer, a person’s waist measurement is as good at predicting cancer risk as their body mass index (BMI). His advice is for people to know their waistlines. “You only need to put a tape measure around your belly button. This is easy to do and can give a person an indication of whether their risk for specific cancers is increased or not – for instance pancreas or liver cancer which are known to be related to increased body fatness or obesity,” he said. Being overweight or obese is the single biggest preventable cause of cancer after smoking and is linked to 13 types of cancer, including bowel, breast and pancreas. The study combined data from about 43,000 participants who had been followed for an average of 12 years and more than 1,600 people were diagnosed with an obesity-related cancer.
Despite the fact the number of people who are overweight or obese has risen over the past 30 years, fewer people are actually attempting to shed weight, according to a new study, the findings of which were published in JAMA. Around two thirds of the adult population in the United States are obese or overweight, putting them at increased risk of heart disease, stroke, diabetes, and other chronic diseases. However, new research has found that even though there has been a significant rise in the number of people who are overweight or obese since the 1980s, the percentage of U.S. adults who are trying to lose weight has fallen. For their research, study co-author Dr. Jian Zhang and her colleagues from the Georgia Southern University, analysed the data of 27,350 U.S. adults aged between 20 and 59 years. The analyses revealed that the rates of overweight and obesity increased by 13%, from 53% in 1988-1994 to 66% in 2009-2014. Furthermore, the researchers also found that the percentage of people who attempted to lose weight over the same period actually dropped by 7%, from 56% in 1988-1994 to 49% in 2009-2014. At present, people are deemed to be overweight or obese depending on their body mass index (BMI). A BMI of 25 to under 30 is considered overweight, while a BMI of 30 or above is considered obese. A healthy diet and regular physical activity are proven to help curb weight gain, which is why we should all make a conscientious effort to watch what we eat and exercise more. [Recommended read: BMI Wrongly Labelling People Unhealthy, Finds New Research]
Half of people labelled 'obese' because of their body mass index (BMI) scores are actually healthy, according to new research, bringing into question the validity of the scoring system. Scientists claim the BMI scoring system is wrongly labelling millions of people 'unhealthy' when, in fact, they are actually much healthier than their slimmer counterparts. Dr. A. Janet Tomiyama, an assistant professor in the department of Psychology at the University of California, Los Angeles, said: "Many people see obesity as a death sentence. But the data shows there are tens of millions of people who are overweight and obese and are perfectly healthy." Scientists say that BMI is being used by healthcare companies to increase premiums in some countries and that the latest findings will be "the final nail in the coffin for BMI." The problem with BMI is that it can give people false hope. For example, a person can have a 'normal' BMI, yet be at risk of disease, highlighting that it is not always an accurate predictor of future health. Prof Tomiyama and her colleagues discovered that more than 54 million Americans are being labelled as "unhealthy," even though they are not. The study - the results of which were published in the International Journal of Obesity - analysed the link between BMI and several health indicators, including blood pressure and glucose, and cholesterol and triglyceride levels. It found nearly half of Americans who are labelled 'overweight' because of their BMIs (34.4 million people) are healthy, as are 19.8 million who are considered 'obese'.
The New Year is here and for many of you that will mean a new exercise regime designed to get you into shape and improve your overall health. For some people, though, sticking to a disciplined program of physical exercise is one of the hardest resolutions they can make because a lack of motivation gets in the way. But now new research sheds some light on why many people, despite understanding the benefits of regular exercise, find it hard in practice to stay physically active. Researchers from the Diabetes, Endocrinology, and Obesity Branch at the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), led by Alexxai V. Kravitz, focused on why obese animals also have a hard time carrying out physical activity. They found that a dysfunction in obese rodents' dopamine systems might help explain why. Mice fed on a high-fat diet started gaining significantly more weight than mice fed on a normal diet. They were also observed to have fewer movements; spend less time moving; and were slower when they did move, compared with the lean mice. Most interesting of all was that the overweight mice's changes in movements did not correlate with body weight gain. Instead, the researchers found that a deficit in striatal D2R explained the obese mice's lack of activity. "In many cases, willpower is invoked as a way to modify behavior. But if we don't understand the underlying physical basis for that behavior, it is difficult to say that willpower alone can solve it," said Kravitz.
A Canadian study has questioned how a pregnant mother's consumption of beverages containing sweeteners might affect the weight of their unborn child. According to the authors, the risk of a mother's unborn child being overweight could be increased among those mothers who consume sweeteners on a daily basis. Dr. Meghan Azad, of the University of Manitoba, Winnipeg, Canada), and her staff questioned more than 3,000 women to learn about their eating habits during pregnancy. In addition, the body mass index (BMI) of their children was also measured at the age of one. The researchers made two main findings: 1. 5.1% of the young children at the age of one were already overweight. 2. Mothers who consumed one or more artificially sweetened drinks each day during their pregnancies doubled the risk of their unborn children being overweight by the time they were one. In conclusion, the researchers admit that their work includes some limitations such as the mothers reporting their eating habits via questionnaire. They point out, however, that "to their knowledge, this is the first study to investigate the potential effect of consuming artificial sweeteners during pregnancy and infant weight gain." In January 2015, the National Agency for Food Safety (ANSES) was less convinced. According to them, "the available data do not make it possible to identify any benefit or conclude on the risk associated with the consumption of intense sweeteners during pregnancy, whether it is maternal health, obstetric parameters, or health of the newborn."
Millions of people all over the world struggle with their waistlines. A constant battle that sees them diet, lose weight and then put it all back on again - sometimes more than they had originally. It's a pattern known as "yo-yo dieting", and a new study suggests that it can be hard on the hearts of older women. According to study leader Dr. Somwail Rasla, who's an internal medicine resident at the Memorial Hospital of Rhode Island in Pawtucket (US), "Women with a normal [weight] who experience yo-yo dieting throughout their adult life are at increased risk of sudden cardiac death and coronary heart disease death". Last week's American Heart Association conference in New Orleans heard that older women who are not necessarily overweight, but continue to strive for that so-called "perfect figure", increase their risk of sudden cardiac death by as much as 66%, which is 3.5 times higher than women who maintain a stable weight. It's long been known that being overweight as you reach middle age is linked with a higher risk of mortality due to heart disease, but the risks associated with yo-yo dieting have had much less research. For the study led by Rasla, the weight histories of 158,000 older, postmenopausal women were analysed. The women who were deemed to be yo-yo dieters - characterised as a cycle of gaining and losing 10 pounds or more - were also found to have a greater risk of coronary heart disease. Until further research is conducted, the message for now from Rasla is that "maintaining a stable body weight is best for overall health."