How Dr. Mark Cucuzzella Goes Slow To Go Fast—Really Fast

Dr. Mark Cucuzzella is the author of the new book Run for Your Life—all about how to achieve longevity in the sport—and has finished marathons in under three hours for 30 straight years. But at one point earlier in his career, he was told he’d have to give up running altogether. Listen to the full episode, and read the full post, on aSweatLife.com.