Your bones do not get stronger by resting. They get stronger by breaking. In this clip from Know Thyself with Zach Bush, the conversation explores the biology of growth and why friction is not the enemy of a good life. It is the requirement. Every time you do weight-bearing exercise, you create millions of micro-fractures in your bones. Hours later, they rebuild denser and stronger than before. This same principle runs through every cell in your body. Stress and growth are inseparable. You cannot have one without the other. And when you spend your life chasing comfort and avoiding friction,…

