
Your Muscle Predicts How Long You’ll Live Better Than Your Heart or Brain
Abstract Two major studies published in 2026 converge on the same tissue. A Nature Medicine study of 60,542 people built aging clocks for more than forty different cell types and found that they age at different rates within the same person — and that of all of them, accelerated aging of skeletal muscle cells was the single strongest predictor of death from any cause, ahead of brain, heart, and every