Tools of Titans: The Tactics, Routines, and Habits of Billionaires, Icons, and World-Class Performers

by Timothy Ferriss

Strength training aids everything from glucose disposal and metabolic health to mitochondrial density and orthopedic stability. That last one might not mean much when you’re a 30-something young buck, but when you’re in your 70s, that’s the difference between a broken hip and a walk in the park.”