Showing posts with label Obesity. Show all posts
Showing posts with label Obesity. Show all posts

Saturday, November 2, 2013

Study says soda tax would cut obesity rates by 1.3 per cent in UK, W. Europe's fattest country

Slapping a 20 per cent tax on soda in Britain could cut the number of obese adults by about 180,000, according to a new study. Though the number works out to a modest drop of 1.3 per cent in obesity, scientists say that reduction would still be worthwhile in the U.K., which has a population of about 63 million and is the fattest country in Western Europe. About one in four Britons is obese. Researchers at Oxford University and the University of Reading estimated a 20 per cent tax on soft drinks would reduce sales by 15 per cent and that people would buy beverages like orange juice, milk and diet drinks instead. They said the tax would have the biggest impact on people under 30, who drink more sugary drinks than anyone else. No funding was provided by any advocacy or industry groups for the study, published online Thursday in the journal, BMJ. "Every possible alternative that people would buy is going to be better than a sugary drink," said Mike Rayner of Oxford, one of the study authors. "(The tax) is not a panacea, but it's part of the solution."

Saturday, August 10, 2013

How the 'obesity gene' triggers weight gain (UK)

How the 'obesity gene' triggers weight gainA UK led international team of researchers has discovered why people with a variation of a certain gene are more likely to become obese. The obesity-risk FTO variant gene affects one in six people who are 70% more likely to become obese. The FTO gene's role in obesity was first discovered in 2007. People with the gene have higher levels of the 'hunger hormone', ghrelin, in their blood which makes them feel hungry again just after eating. One in 4 adults in the UK are now obese and the numbers are rising. The new study was led by scientists at University College London, the Medical Research Council and King’s College London Institute of Psychiatry. Twenty healthy weight male volunteers were used in the trial rather than people who were already overweight. "As soon as you've become overweight, then all of your body systems behave in a different manner, and you don't know which is cause or consequence," says Dr Rachel Batterham from UCL and University College London Hospitals who led the study. Ten of those taking part had the FTO gene, the other 10 didn't. Even within this normal weight range group, people with the FTO gene were likely to have more body fat

Tuesday, February 19, 2013

Obesity crisis risks making Britain 'fat man of Europe', warns report

Obesity crisis risks making Britain 'fat man of Europe', warns reportThe Academy of Medical Royal Colleges is calling for fewer fast food outlets near schools and a complete ban on unhealthy food in hospitals in a report which warns the crisis is at risk of becoming "unresolvable". By 2050 more than half of adults will be seriously overweight and tough measures are needed to prevent the situation spiralling completely out of control, the UK's 220,000 doctors warn. They want action from the Government, National Health Service, councils, food firms, and parents in order to stop "generation after generation falling victim to obesity-related illness and death", according to The Guardian newspaper. Doctors are united in viewing obesity - the consequences of which include diabetes, heart disease and cancer - as the single greatest public health crisis facing the country, the report says. The epidemic means that people are dying needlessly from avoidable diseases, it adds. The report criticises both current and previous governments for "piecemeal and disappointingly ineffective" attempt to deal with the problem, given that one in four adults in England is obese and these figures are set to climb to 60 per cent of men, 50 per cent of women, and 25 per cent of women over the next 37 years. The statistics have made the UK the "fat man of Europe", leading the academy to draw up a 10-point-plan at the end of their year long consultation on the topic

Friday, February 8, 2013

Tough times ahead can tip the scale towards obesity (USA)

Tough times ahead can tip the scale towards obesity (USA)A new study from the University of Miami recently found that a tough economic climate can cause weight gain for individuals. In particular, the researchers discovered that, during hard times, people are more likely to look towards high-calorie foods that will keep them feeling happy over a longer period of time. In addition, they found that, when paired with messages like "live for today," individuals were more impulsive in their actions and consumed almost 40 percent more food than a group who wasn't given a message that was more neutral in tone. On the other hand, when food was paired with a "tough times" message, people appeared to consume around 25 percent less of the food provided. "The findings of this study come at a time when our country is slowly recovering from the onslaught of negative presidential campaign ads chalked with topics such as the weak economy, gun violence, war, deep political divides, just to name a few problem areas," explained Juliano Laran, an assistant professor of marketing at the University of Miami School of Business Administration, in a prepared statement. "Now that we know this sort of messaging causes people to seek out more calories out of a survival instinct, it would be wise for those looking to kick off a healthier new year to tune out news for a while." The outcomes of the study were recently featured in the February edition of Psychological Science, a journal affiliated with the Association of Psychological Science

Queen's Diamond Jubilee Medal for obesity research expert (Canada)

Queen's Diamond Jubilee Medal for obesity research expert (Canada)ParticipACTION, the national voice of physical activity and sport participation in Canada, and the Children's Hospital of Eastern Ontario Research Institute have announced that Dr. Mark Tremblay has been awarded a Queen Elizabeth II Diamond Jubilee Medal from the Governor General of Canada. Medals are awarded to individuals who have distinguished themselves from others through their achievements and sustained contribution to their field. Under Dr. Mark Tremblay's direction, the Healthy Active Living and Obesity research group at the CHEO Research Institute is committed to leading the battle against unhealthy living behaviours. Through research, leadership, partnerships, education and advocacy, HALO aims to promote and preserve healthy active lifestyles while managing and treating childhood inactivity and obesity. Dr. Tremblay, himself, has published more than 170 papers and book chapters on related topics and he has delivered over 500 scholarly conference presentations, including more than 120 invited and keynote addresses across 16 countries. He currently sits on the Board of half a dozen organizations relating to his research practice area

Friday, January 18, 2013

Xtreme Eating 2013: extremism running amok at America's restaurant chains

Xtreme Eating 2013: extremism running amok at America's restaurant chainsA milkshake with a slice of apple pie blended right in. A 3,000-calorie plate of pasta. A breakfast that includes deep-fried steak and pancakes (and hash browns and eggs and gravy and syrup). Obesity rates may show signs of leveling off, but it looks like America's major restaurant chains are doing everything possible to reverse the trend, according to the nonprofit Center for Science in the Public Interest. The group unveils the latest "winners" of its Xtreme Eating Awards in the current issue of its Nutrition Action Healthletter. "It's as if IHOP, The Cheesecake Factory, Maggiano's Little Italy, and other major restaurant chains are scientifically engineering these extreme meals with the express purpose of promoting obesity, diabetes, and heart disease," said CSPI executive director Michael F. Jacobson. "You'd think that the size of their profits depended on their increasing the size of your pants."

Wednesday, October 24, 2012

Ontario doctors launch assault on obesity, urging tobacco-like warnings on bad food

Ontario doctors launch assault on obesity, urging tobacco-like warnings on bad foodOntario doctors have launched an assault on obesity, saying society should aggressively fight the epidemic using the tools that have made major inroads in the battle against smoking. The campaign calls for graphic warnings - like the ones tobacco companies must print on cigarette packages - on high-calorie, low-nutritional value foods such as sugar-sweetened soft drinks, french fries and even fruit juices. It also calls for higher taxes on sugary or fatty foods, lower taxes on healthy foods, and restrictions on sales of junk foods in sports venues and other recreational facilities used by children and teenagers. The types of changes needed to fight obesity won't come into effect overnight, Dr. Doug Weir, president of the Ontario Medical Association, admitted at a news conference. But Weir said society needs to start addressing obesity or it will face epidemic levels of weight-induced illnesses, including Type 2 diabetes, heart disease and some cancers

Tuesday, August 21, 2012

U of S and Saskatchewan Blue Cross announce $1-million investment to launch childhood obesity prevention program

The University of Saskatchewan has announced an exciting partnership with Saskatchewan Blue Cross to curb childhood obesity in the province. Enabled by the generous $1-million investment of Saskatchewan Blue Cross, the College of Kinesiology will launch the Mind, Exercise, Nutrition, Do It (MEND) program in Saskatchewan this September.

"The corporate social responsibility vision of Saskatchewan Blue Cross is the improved health and wellness of Saskatchewan residents. We care about Saskatchewan people and feel a strong responsibility to address the pressing health issue of childhood obesity, as our children's health will determine the future health of our province," stated Arnie Arnott, president and CEO of Saskatchewan Blue Cross.

"We are very pleased to be the lead partner of MEND in Saskatchewan, creating a breakthrough pathway for young people to connect with a new obesity prevention program," Arnott continued. "We are tackling the issue of childhood obesity by committing $1-million in start-up funding for a MEND program to be delivered at the University of Saskatchewan, the first of its kind in our province."

MEND inspires children and families to lead and sustain fitter, healthier and happier lives by changing behaviours that cause obesity. Presently in Canada, more than a quarter of children ages two to17 are overweight or obese. In Saskatchewan the problem is even more pronounced with a rate of over 29 per cent.

"The College of Kinesiology is particularly committed to this program. Promoting a healthy lifestyle and highlighting the importance of increased levels of physical activity are key components in reversing this trend," said Carol Rodgers, dean of the College of Kinesiology.

"It is also a wonderful opportunity for students and faculty across the Colleges of Kinesiology, Nursing, Medicine and Pharmacy and Nutrition to work together in an inter-professional model of wellness program delivery," she added.

MEND is a program that has evolved into one of the most successful and internationally recognized obesity prevention initiatives in the past decade with programs in the United Kingdom, Canada, United States, Australia, New Zealand and Denmark.

In Saskatchewan, the program will begin as a three-year project, starting with Saskatoon in the first year and expanding to Prince Albert and northern communities in year two. In its third year, it will expand throughout the province to include Regina and southern regions. The programs are provided free of charge through the support of donors like lead partner Saskatchewan Blue Cross, and will offer three streams, focusing on children aged two to four, five to seven and seven to 13.

Together with their parents, children learn about topics that range from nutrition and portion size to motivation and goal setting. Additionally, children participate in group physical activity while parents discuss ways to improve the overall health of their families.

The leadership Saskatchewan Blue Cross exemplifies in supporting the MEND program is in line with its vision of improving the health and wellness of Saskatchewan residents

Wednesday, August 1, 2012

Brown fat fuels fight against obesity

Experts may have found a new method for assessing adipose tissue function that could be used in the fight against obesity. Thermal imaging of the head, neck, and shoulder area on exposure to a "cool challenge" can indicate the site and position of brown adipose tissue (BAT), the tissue that expends more heat energy than any other type in the body. "Potentially, the more brown fat you have or the more active your brown fat is you produce more heat and as a result you might be less likely to lay down excess energy or food as white fat," explained lead author Michael Symonds (Nottingham University, UK) in a press statement. Currently, the main methods of assessing BAT include positron-emission tomography (PET), computed tomography (CT) scanning, and/or tissue scanning, but these techniques are expensive and require either the administration of radiopharmaceuticals or tissue sampling, explains the team

Tuesday, May 22, 2012

Overweight teens: Half have heart risk, CDC says (USA)

Overweight teens: Half have heart risk, CDC says (USA)Half the nation's overweight teens have unhealthy blood pressure, cholesterol or blood sugar levels that put them at risk for future heart attacks and other cardiac problems, new federal research says. And an even larger proportion of obese adolescents have such a risk, according to the alarming new numbers. "What this is saying, unfortunately, is that we're losing the battle early with many kids," said Dr. Stephen Daniels, a University of Colorado School of Medicine expert who was not involved in the study. People can keep their risk of heart disease very low if they reach age 45 or 50 at normal weight and with normal blood pressure, normal cholesterol and no diabetes. So these results are not good, he said. The study was released in the journal Pediatrics

Friday, March 16, 2012

Free porridge cut accidents in obese workers at Olympics (UK)

Free porridge cut accidents in obese workers at Olympics (UK)The 80,000-seater stadium and the 2,818 flats built for the Olympic Village in Stratford, east London, were constructed by a workforce who lived on 'takeaways', according to Olympic chiefs. It was only during construction that bosses from the Olympics Delivery Authority (ODA) realised that a staggering number of the 12,000 builders working on the Olympic showpiece were living an 'unhealthy lifestyle' and that many were significantly overweight. Lawrence Waterman, head of health and safety for the ODA, revealed the statistics at a health and safety conference hosted by the Police Federation last week. He revealed statistics from an occupational health report which showed that 28 per cent of the 12,000 builders - that's 3,360 - at the Olympic Park were classed as 'obese'. The report also revealed that 41 per cent of the workforce - a staggering 4,920 - were overweight and that 3,500 - 29 per cent - had high blood pressure. He said that accidents were being caused by workers skipping breakfast after indulging in fatty takeaways the night before - leaving them 'desperate' for something to eat by lunchtime. The conference heard how accidents at the massive 500-acre site 'peaked' in the one-hour period before lunch as workers' minds were on what they were having for lunch rather than on the job in hand. Mr Waterman said that as soon as bosses at the ODA realised how unhealthy the workers were they started offering bowls of porridge for just £1 to workers so they got a 'healthy start to the day'. He stated in his report: "They (the workers) were coming into work for three hours suffering really low blood sugar. "We had canteens offering porridge for a £1 and accidents in the morning went down."

Walking cuts genetic effect of obesity

Walking briskly for an hour a day can help those with a genetic tendency toward obesity, U.S. researchers said. Study author Qibin Qi, a postdoctoral research fellow at Harvard School of Public Health in Boston, and colleagues said the study examined 7,740 women and 4,564 men from the Nurses' Health Study and Health Professionals Follow-up Study - involving men working in the healthcare industry. Researchers collected data on physical activity and TV watching two years prior to assessing body mass index, and calculated a genetic predisposition score based on 32 established BMI-predisposing genetic variants. "While previous studies have looked at how physical activity affects genetic predispositions, this is the first study that directly looked at the effect of the sedentary behavior of television watching on the BMI of individuals with a genetic predisposition to obesity," Qi said in a statement. "In our study, a brisk 1-hour daily walk reduced the genetic influence toward obesity, measured by differences in BMI by half. On the other hand, a sedentary lifestyle marked by watching television 4 hours a day increased the genetic influence by 50 percent." The findings were presented at the American Heart Association's Epidemiology and Prevention/Nutrition, Physical Activity and Metabolism scientific sessions in San Diego

Friday, August 26, 2011

Global governments 'must get tough on obesity'

Global governments 'must get tough on obesity'Tougher action - including taxing junk food - is needed by all governments if the obesity crisis is going to be tackled, experts say. The international group of researchers, who have published a series of articles in The Lancet, said no country had yet got to grips with the problem. They said changes in society meant it was getting harder for people to live healthy lives. And they warned without state action, health systems could become swamped. Obesity-related problems, such as diabetes, were now accounting for between 2% and 6% of health care costs in most countries - BBC

Thursday, August 25, 2011

Call to measure duration of obesity

Call to measure duration of obesityExperts say the health hazards of obesity may have been grossly underestimated because we are not measuring the condition adequately. Risk calculations have focused on severity of weight gain alone and not how long it persists. Latest research suggests every additional decade of being obese more than doubles death risk. The researchers told the International Journal of Epidemiology a new measure is needed - the "obese-year". Similar to the "pack-year" used for smoking, it gives a further quantification that can be used to help estimate the associated health risks.

Tuesday, July 26, 2011

Video: Need to improve healthcare for larger patients (UK)

The NHS is poorly prepared to treat obese patients, an analysis of patient safety records suggests. The Central Manchester University Hospitals NHS Trust team reviewed nearly 400 cases submitted to the National Patient Safety Agency to identify what mistakes were being made. The researchers highlighted a range of issues, including problems with drug doses, ventilation and surgery. Kathryn Szrodecki, who campaigns on behalf of overweight people, and GP Dr Rosemary Leonard, discuss the healthcare needs of larger patients - BBC

Saturday, June 11, 2011

Nicotine treatment 'could control obesity'

Nicotine treatment 'could control obesity'Scientists have identified a group of neurons in the brain responsible for smokers' lack of appetite. In an article in the journal Science, Yale University researchers describe experiments on mice which found nicotine activates neurons to send signals the body has had enough to eat. However they are not the same neurons which trigger a craving for tobacco. As a result, the researchers say nicotine-based treatments could help control obesity. A research team from Yale University School of Medicine and Baylor College of Medicine in Houston performed a combination of molecular, pharmacological, behavioural and genetic experiments on mice. They found that nicotine influences a collection of central nervous system circuits, known as the body's hypothalamic melanocortin system, by activating certain receptors. These receptors, in turn, increase the activity of pro-opiomelanocortin (POMC) neurons, known for their effects on obesity in humans and animals

Thursday, June 2, 2011

Frequent travellers have high obesity risk (USA)

A new study from Columbia University in the United States shows that you are 92% likely to be obese if you are a frequent traveller. In a study of 13,000 people which includes non-travellers as well as frequent business travellers the analysis showed that Body Mass Index (BMI), which is the accepted measurement for obesity, rises significantly if you travel for 14 days or more in a month. And these trends are also reflected in differences in blood pressure and cholesterol

Thursday, May 5, 2011

Scientists turn bad fat into 'good' calorie-burning fat

Scientists turn bad fat into 'good' calorie-burning fatScientists have found a way to turn bad fat into calorie burning good fat, and say the discovery could lead to new and better treatments for obesity. White or 'bad' fat typically collects around our waists as well as other parts of the body and stores the extra calories we consume. But brown 'good' fat, found in abundance in babies, acts like a power source, burning calories and generating heat. By the time we are adults, most brown fat has disappeared and been replaced by white fat. Scientists at Johns Hopkins University, Baltimore initially tried to reduce body fat and weight gain in rats by suppressing the production of an appetite-stimulating protein called neuropeptide Y (NPY) in the part of the brain which helps to regulate hunger and thirst. The findings showed that rats treated this way gained less weight after five weeks, compared with untreated rats which became obese, showing that suppressing NPY led to less calories being consumed. However, when the scientists examined the rats with suppressed NPY, they discovered that some of their white fat had been replaced with brown fat. The scientists speculated that white fat tissue may contain some brown fat cells which become activated when NPY is suppressed. In the future, it may be possible to transplant or inject brown fat stem cells under the skin to burn white fat and stimulate weight loss, the researchers said. Dr Sheng Bi, at the university's school of medicine, who led the research said: "If we could get the human body to turn "bad fat" into "good fat" that burns calories instead of storing them, we could add a serious new tool to tackle the obesity epidemic." The findings are published in the journal Cell Metabolism

Waist fat 'increases heart risk'

Waist fat 'increases heart risk'People with coronary artery disease have an increased risk of death if they have fat around the waist, according to researchers in the US. The Mayo Clinic team, which analysed data from five studies involving 15,923 patients, found this even affected people with a normal Body Mass Index. In the Journal of the American College of Cardiology, they said people with waist fat should try to lose weight. The British Heart Foundation said those with heart disease should be vigilant. The researchers at the Mayo Clinic looked at the distance around the hips and waist to measure the fat around the belly, and BMI which is a measure comparing height and weight. There was a 75% increased risk of death for patients with high levels of fat around the waist compared with those with thin waists. Even patients with a normal weight, a BMI between 20 and 25, had this increased risk of death if they were carrying fat around the waist

Thursday, April 7, 2011

Tangerines help prevent obesity, type 2 diabetes in mice

Tangerines help prevent obesity, type 2 diabetes in miceWhile an apple a day keeps the doctor away, a tangerine a day may provide even greater health benefits, researchers say. Scientists at the University of Western Ontario in London, Ont., say a substance found in high concentrations in the fruit prevents obesity and offers protection against type 2 diabetes in lab mice. Their research, published in the journal Diabetes, found that the naturally occurring substance nobiletin also helped to protect against atherosclerosis — the disease responsible for most heart attacks and strokes. "The nobiletin-treated mice were basically protected from obesity," Murray Huff, a vascular biology scientist at the University of Western Ontario, said in a release. "And in longer-term studies, nobiletin also protected these animals from atherosclerosis, the buildup of plaque in arteries, which can lead to a heart attack or stroke." Nobiletin is part of a family of molecules called flavonoids that are found naturally in citrus fruits. Tangerines boast the highest nobiletin concentration of any citrus fruit. A Statistics Canada study suggested that one in four Canadians are considered obese