To Keep Pounds Off, Keep Moving

Middle-aged paunch is a common complaint for men and women alike. More people than ever are now classified as obese, with more than 30 percent of American adults in that category.
The CARDIA study, for coronary artery risk development in young adults, lasted 20 years. It demonstrated that both men and women who were physically active were less likely to add inches to their waistlines. Maintaining a high level of physical activity led to lower levels of weight gain over the 20 years. Women appeared to benefit the most. The researchers concluded that their results reinforce the role of physical activity in minimizing weight gain. They also recommend incorporating at least 30 minutes of activity into daily life.
[JAMA, Dec. 15, 2010]