Get my 9-Minute Kettlebell & Bodyweight Challenge FREE here: http://www.9MinuteChallenge.com

Wanna build "old man strength" at any age? 

You're in luck, because it's not about your age per se, but rather your choice of physical activities. And for my money, if there's one physical activity you can't afford to skip, it's the one chronicled in this short-but-action-packed episode.