If you want to turn back the biological clock, lift weights—it’s not just my opinion. Researchers from Tufts University ranked these controllable aging biomarkers in their book Anti-Aging, Biomarkers & Strength Training:

1. Muscle Mass
2. Muscle Strength
3. Basal Metabolic Rate
4. Body Fat Percentage
5. Aerobic Capacity
6. Blood-Sugar Management
7. Cholesterol/HDL Ratio
8. Blood Pressure
9. Bone Density
10. Temperature Regulation

Remarkably, all 10 markers can be improved—or maintained—through regular strength training (source).

The Domino Effect

William Evans, Ph.D., and Irwin H. Rosenberg, M.D. describe muscle mass and strength as the first dominoes. When they fall, the rest follow. Conversely, maintain or build them, and the others stay robust too—making strength training the ultimate “Fountain of Youth” (source).

Bottom Line:

If you seriously want to slow aging, strength training is the most powerful medicine available. Don’t go it alone—hire a professional and do it right! Guide to finding a good trainer.