Subscribe to The Post Most newsletter for the most important and interesting stories from The Washington Post. A drug taken by thousands of Americans to improve longevity might have an unexpected ...

A new study reveals rapamycin may undermine exercise benefits, challenging its hype as a longevity breakthrough.

For those over 60, maintaining thigh strength is crucial for independence and mobility. While machines like the leg press can ...

Ponsegromab treatment led to sustained weight gain and GDF-15 suppression over 64 weeks in cancer-associated cachexia patients. Patients initially on placebo gained weight after switching to ...