CNS Fatigue: Why Your Strength Stalls After 40 (and How HRV Catches It)
Here’s a feeling every lifter over 40 knows, even if they’ve never named it. You show up. Your muscles don’t even hurt. Your warm-up feels fine. Then you get under a bar that you moved easily last week — and it feels like it’s bolted to the floor. Your coordination is slightly off. Your drive is gone. You grind through it anyway, because that’s what men do, and the number still won’t budge. ...