Nervous System on Train Decadehttps://traindecade.com/tags/nervous-system/Recent content in Nervous System on Train DecadeHugoenThu, 08 Oct 2026 07:00:00 +0800CNS Fatigue: Why Your Strength Stalls After 40 (and How HRV Catches It)https://traindecade.com/posts/your-nervous-system-is-fried/Sat, 05 Sep 2026 07:00:00 +0800https://traindecade.com/posts/your-nervous-system-is-fried/Why the bar feels glued down while your muscles feel fine, the symptoms that separate CNS fatigue from ordinary soreness, and when HRV says back off.