Brief Workouts Are Just as Good for Weight Loss
People trying to drop pounds are wise to exercise, but a brief workout may be as effective as a longer one—at least for weight loss. A study found that overweight men exercising 30 minutes a day lost 8 pounds over three months while those working out daily for 60 minutes lost just 6 pounds. These counterintuitive findings demonstrate the complicated relationship between weight and physical activity. The researchers think that a full hour of exercise may drive people to eat more than they would have if they'd exercised only 30 minutes, thus negating the weight-loss benefits from the extra physical activity.
Source: American Journal of Physiology, published online Aug. 1, 2012