New study shows only how much—and how fast—you should jog In 2013, about 54 million Americans went running at least once, and nearly 30 million ran 50 times or more.1 Many of these people weren’t [...]
New study shows only how much—and how fast—you should jog In 2013, about 54 million Americans went running at least once, and nearly 30 million ran 50 times or more.1 Many of these people weren’t [...]