Stiffness on Train Decadehttps://traindecade.com/tags/stiffness/Recent content in Stiffness on Train DecadeHugoenWed, 02 Sep 2026 08:00:00 +0800Stiff Isn't Inevitable: Mobility After 40 Is a Skill, Not a Death Sentencehttps://traindecade.com/posts/stiff-is-not-inevitable-mobility-after-40/Wed, 02 Sep 2026 08:00:00 +0800https://traindecade.com/posts/stiff-is-not-inevitable-mobility-after-40/"I'm just stiff these days" treats stiffness like weather. It isn't. Mobility is strength through a range, and it declines through disuse, not age.