The average adult needs at least two hours and 30 minutes of activity each week, if it’s at a moderate intensity level, like brisk walking. Up the intensity to jogging or running, and you can aim for at least 75 minutes a week. Add in a couple of strengthening sessions a week, and you can expect to build muscle, protect your heart, avoid obesity and even live longer.
That’s not to say that shorter bouts of exercise aren’t worth it. Even just in 10-minute increments, exercise can make a marked difference in health and well-being. But those of us who make exercise part of their regular routine — without overdoing it — are certainly reaping the biggest benefits.