Get moving: New exercise guidelines released on Tuesday set a minimum sweat allotment for good health. For most adults, that’s 2 1/2 hours a week. How much physical activity you need depends largely on age and level of fitness.
Moderate exercise adds up for sluggish adults. Take a quick walk around the block or suit up for the neighborhood softball game. More fit adults could pack in their week’s requirement in 75 minutes with vigorous exercise, such as jogging, hiking uphill, a bike race or speedy laps in the pool.