You can lift mountains, but if your engine sputters, the whole system fails. In the fifth chapter of “The Prerequisites for Strength”, we tackle the often-overlooked foundation of strength: your cardiovascular system. It fuels your lifts, feeds your muscles, and determines whether you recover or burn out. Even the biggest deadlift depends on a healthy heart. After 40, this isn’t optional—it’s essential. 🧱❤️🏋️‍♂️