July 27, 2026
The Real Reason Exercise Keeps You Young
Good morning,
Scientists just found the molecular switch behind one of movement's biggest benefits. A gene called DEAF1 builds up in aging muscle and gets in the way of repair. Exercise turns that switch down — letting older muscle clear out damage and rebuild itself far more effectively than it can at rest.
Where to begin: You don't need an hour at the gym for this. Two to three short strength sessions a week — even bodyweight work — appear to be enough to keep this repair system active. Consistency matters more than intensity here.
Have a healthy day! 🌿 Luba