Jules Syb | Physical Therapist | Hybrid Athlete on Instagram: "Here’s how this works ↓ Let me explain using a framework I share with clients: Humans peak in physical capacity around age 25. You go from “0” at birth to “100” at 25, then slowly decline. When you drop below 20% (around age 80), daily life becomes a struggle. This happens regardless of exercise... but exercise dramatically changes the trajectory. How training affects this: ✅ Increases your peak (proper training can get you to 120, 1