When it comes to physical activity, any exercise is better than none, and a lot is better than a little. Physical activity is anything that gets your body moving, but messages promoting exercise often lack a strict definition of the amount of exercise needed to attain health benefits. In the 2008 Physical Activity Guidelines for Americans, the Department of Health and Human Services (HHS) concluded that adults need two types of physical activity each week to improve overall health: aerobics and strength training. HHS recommends. Read More