Harvard Health Blog
Exercise: You may need less than you think
Posted December 08, 2015, 9:00 am Gregory Curfman, M.D., Editor in Chief, Harvard Health Publications Regular exercise is one of the cornerstones for maintaining good health. Regular physical activity helps to prevent heart and blood vessel disease, diabetes, dementia, and even some types of cancer. 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.