Exercise: You may need less than you think – Harvard Health Blog – Harvard Health Publications

Regular exercise is one of the cornerstones for maintaining good health. But while the health benefits of exercise are indisputable, there is still a question about exactly how much exercise is needed to promote optimal health.

Every little bit of exercise counts

Drs. Eijsvogels and Thompson reviewed several published studies and concluded that as little as 15 minutes a day of moderate-intensity exercise — and only 8 minutes a day of vigorous-intensity exercise — reduced the risk of death

Even small amounts of exercise and modest increases in fitness can make a clear difference, and some exercise is always better than no exercise.