You may want to buy healthy food for your family, but if the good grocery stores are far away and pricey and the fast-food outlets are cheap and plentiful, it may be harder to make the healthy choice. Research led by the University of Alberta and funded by the Canadian Institute for Health Information confirms there are links between our urban surroundings and how likely we are to struggle with obesity.

New SIRT1 activator protects against metabolic diseases associated with a high fat diet. A study appearing November 5 in the journal Cell Metabolism indicates that the synthetic new chemical entity protects against diet-induced obesity, improves glucose tolerance and insulin sensitivity and enhances exercise endurance by enhancing fat utilization in certain target tissues.

California's low-income teenagers have a lot in common: Sugary soda. Fast-food restaurants. Too much television. Not enough exercise. The result: Low-income teenagers are almost three times more likely to be obese than teens from more affluent households, according to new research from the UCLA Center for Health Policy Research.

What if free exercise classes were offered in public spaces such as parks, beaches and recreation centers? When a city government in Brazil tried such a program, it greatly increased physical activity among community members. A group of health researchers who studied the program believes it could also work in U.S. cities with warm climates.

Irish kids now weigh 24 kilos more than they did in 1948, reveals research published ahead of print in the Journal of Epidemiology and Community Health.

Obese adolescents have the same risk of premature death in adulthood as people who smoke more than 10 cigarettes a day, while those who are overweight have the same risk as less heavy smokers.