You’re training hard, eating smart—but your body just isn’t playing along like it used to. Welcome to midlife chemistry. In this sixth chapter of “The Prerequisites for Strength”, we explore the endocrine system: the hormonal command center quietly dictating your recovery, performance, energy, and body composition. As we age, the rules change—but the game isn’t over. You just need a new playbook. 🧱🧬⚖️