Kelly Starrett, a doctor of physical therapy, has trained professional athletes, Olympians, and military special operators, helping them unlock peak performance. But as he approached his fifties, he started to see cracks appearing in the health of the folks around him. What had worked for his peers in their 20s and 30s, wasn’t working anymore; they were gaining weight, having surgeries, and just didn’t feel good. So he and his wife and fellow trainer, Juliet, decided to write a book — Built to Move: The Ten Essential Habits to Help You Move Freely and Live Fully — that took all that they’ve learned from training elite performers and distilled it into the foundational practices that everyone, at every age, can use to develop lasting mobility, durability, and all-around health. Today on the show, Kelly unpacks some of those essential physical habits, sharing the “vital signs” — tests that will help you assess how you’re doing in that area — as well as daily practices that will help you strengthen and improve that capacity.