Joint Health

Collagen and tendon loading

Collagen for Tendons After 40: The Supplement That Only Works With Load

Walk down any supplement aisle and collagen has taken over half the shelf. The pitch is always the same: your collagen declines after 40, so take this and get it back. Skin, hair, nails, joints, “glow” — one powder promising everything. Here’s what that pitch quietly leaves out. Collagen is not one thing with one effect. The strongest evidence for it is narrow, specific, and comes with conditions attached. The evidence for the thing people actually buy it for — bigger muscles — is not just weak, it’s negative. ...

Mobility after 40 — range of motion trained as a skill

Stiff Isn't Inevitable: Mobility After 40 Is a Skill, Not a Death Sentence

Sometime around forty, men start describing their own bodies the way they’d describe the rain — “I’m just stiff now.” It’s said with the resignation of a weather report, as if stiffness were a thing that happened to them rather than a thing they stopped doing. That one sentence contains an entire theory of aging, and it’s wrong. Stiffness is not a property of getting older. It’s the consequence of a skill — moving through a full range of motion — that quietly got dropped from the training menu the moment the schedule got busy. ...