We’ve known for years that walking is a good form of exercise for seniors … we just didn’t know why. Now a new study not only explains how it works, but why brisk walking is even more effective.

Ten years ago, researchers at Leicester University Biomedical Research Centre started looking at genetic data in the biobanks in the U.K. for clues about why seniors who walk seemed to live longer. They didn’t fool around with a

You must be logged in to view this content.