If you don’t know who Dr. Metzl is you should find out about him. His book, The Athlete’s Book of Home Remedies: 1,001 Doctor-Approved Health Fixes and Injury-Prevention Secrets for a Leaner, Fitter, More Athletic Body! expounds on his belief that humans are meant to move. Every day. Even (safely) through injuries. He explains how strength training will prevent injuries and enhance athletic performance. This video with Dr. Metzl and 81 year old marathoner Elaine Breiger pretty much sums up his philosophy! Prepare to get inspired!