obesity facts news and information
Thursday August 28th 2014

Why don’t diets seem to work?

Why don’t diets seem to work? Going on" a diet is not the answer to losing weight. This is because the weight is soon regained after you "go off" your diet. If diets really worked, there wouldn't be so many of them! Instead, your usual eating and exercising patterns need to be changed so that your weight stays right for you


The incidence of childhood obesity is rapidly rising throughout the world. The obesity epidemic is especially evident in industrialized nations where many people live sedentary lives and eat more convenience foods, which are typically high in calories and low in nutritional value. In just two decades, the prevalence of overweight doubled for U.S. children ages 6 to 11 — and tripled for American teenagers. The annual National Health and Nutrition Examination Survey by the Centers for Disease Control and Prevention found that about one-third of U.S. children are overweight or at risk of becoming overweight. In total, about 25 million U.S. children and adolescents are overweight or nearly overweight


A gene linked to obesity may also cause Alzheimer’s disease, according to a new study.
Obesity causes brains to shrink – increasing the risk of Alzheimer’s disease later in life, researchers say

Researchers at the University of California, Los Angeles, found the same gene — allele, from the fat mass and obesity associated gene, the FTO gene, which increases risk of gaining weight — is also linked to brain shrinkage.

Senior study author Paul Thompson, a UCLA professor of neurology and colleagues said the FTO variant puts more than one-third of the U.S. population at risk for a disease, such as Alzheimer’s.

The researchers generated three-dimensional “maps” of brain volume differences in 206 healthy elderly subjects using magnetic resonance imaging from 58 sites in the United States.

The study, published in the journal Proceedings of the National Academy of Sciences, found consistently less brain tissue — up to less than 12 percent of some parts of the brain — in those with the FTO allele compared with non-carriers of the variant.

In addition, the study said the differences of brain volume could not be directly attributed to other obesity-related factors such as cholesterol levels, diabetes or high blood pressure.

“If you have the bad FTO gene, your weight affects your brain adversely in terms of tissue loss,” Thompson said in a statement. “If you don’t carry FTO, higher body weight doesn’t translate into brain deficits.”

 A Spokesperson for the Alzheimer’s Society said: “We’ve known for some time that there’s a link between obesity in mid life and the development of Alzheimer’s disease. However this study suggests that healthy people who carry a specific DNA sequence associated with obesity could be at a greater risk of developing dementia.

“This is a relatively small study but the findings support the need for more research. One million people will develop dementia in the next 10 years but dementia research is desperately under-funded, however with the right investment, it can be defeated


Smoking during pregnancy is a known risk factor for a variety of health problems for babies, including low birth weight, respiratory issues and even sudden infant death syndrome (SIDS). A new study, published in the journal Obesity, suggests exposure to cigarette smoke in utero may also contribute to abdominal obesity in late adolescence1207644_generic__pregnant_women_smoking.

“We believe that maternal cigarette smoking during pregnancy plays an important role in the fetal programming of obesity,” says Dr. Zdenka
The joint study from the University of Montreal and McGill University looked at 500 people between the ages of 12 and 18. Half the group had mothers who had smoked up to 11 cigarettes a day throughout their pregnancies. The other half was not exposed to cigarette smoke in the womb.
There were no significant weight differences among the younger teenagers of either group.
The older teenagers who were born to smoking mothers, however, had 26 per cent more body fat and 33 per cent more fat in their abdomens than teenagers whose mothers didn’t smoke.
The study also found that those who were exposed to cigarette smoke also weighed 300 grams less at birth and breastfed a shorter period of time than their peers.
One of the lead researchers said although a causal link could not be established in this study between smoking and birth weight or breastfeeding time, other studies involving animals have indicated that nicotine may have an impact on brain functions that control eating impulses and energy metabolism.
“We believe that maternal cigarette smoking during pregnancy plays an important role in the fetal programming of obesity,” Dr. Zdenka Pausova, a scientist at the Hospital for Sick Children, said in a statement. “Although we do not know the exact mechanisms, we know that nicotine in cigarette smoke, for example, sets into the baby’s body and stays there in higher quantities and for longer than in the mother’s.”

The research was conducted by a team of scientists from the University of Nottingham, the University of Toronto, McGill University, the Université de Montréal and the Université du Québec à Chicoutimi. Co-principal investigators of the study are Pausova, former principal research fellow at the University of Nottingham, and Dr. Tomas Paus, who is now Senior Scientist at Baycrest

Institute for Cancer Research Facts

The American Institute for Cancer Research (AICR) has released figures showing approximately 100,000 cases of cancer each year in the United States can be attributed to excess body fat.obese-women-150x150

The AICR estimates the following percentages of cancers are linked to being overweight or obese:

49% of endometrial cancers (approximately 20,700 cases per year)
35% of esophageal cancers (approximately 5,800 cases per year)
28% of pancreatic cancers (approximately 11,900 cases per year)
24% of kidney cancers (approximately 13,900 cases per year)
21% of gallbladder cancers (approximately 2,000 cases per year)
17% of breast cancers (approximately 33,000 cases per year)
9% of colorectal cancers (approximately 13,200 cases per year)
The researchers found a definite link between excess body fat and cancers of the endometrium, esophagus, pancreas, kidney, breast (post-menopausal) and colorectal. The link between excess body fat and gallbladder cancer is felt to be probable at this time.

“We now know that carrying excess body fat plays a central role in many of the most common cancers,” said Laurence Kolonel, MD, PhD, Deputy Director of the Cancer Research Center of Hawaii and AICR/WCRF expert panel member “And it’s clearer than ever that obesity’s impact is felt before, during and after cancer – it increases risk, makes treatment more difficult and shortens survival.”

The connection between being overweight and cancer may be due to the fact excess body fat increases the production of estrogen, a hormone many cancers require for growth, as well as other hormones and body chemicals that help prevent or control cancer formation. Studies also show being overweight reduces the effectiveness of the immune system.

The American Institute for Cancer Research and the World Cancer Research Fund released the report Policy and Action for Cancer Prevention, which estimated the percentage of cancers attributable to poor diet, lack of exercise and excess body weight, earlier in 2009. The new estimates, released on November 5, 2009, were calculated using information from that report and the latest US cancer incidence data provided by the American Cancer Society.

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