Foundations

Established

Exercise and resistance training

The best-evidenced healthspan intervention we have: aerobic fitness plus strength.

MUSCLE CONTRACTSMITOCHONDRIA MULTIPLY
Mechanism · Exercise and resistance training
01Working muscle contracts and pulls glucose out of the blood.

How it works

Regular aerobic and resistance exercise improves mitochondrial capacity, insulin sensitivity and muscle maintenance, and is studied for its effects on systemic inflammation. It touches several hallmarks at once rather than a single pathway.

Hallmarks of aging targeted

Mitochondrial dysfunction · Deregulated nutrient sensing · Chronic inflammation

What the evidence says

Honest about what is proven, and what is not.

In 122,007 adults who had treadmill testing, the fittest group had about 80% lower adjusted mortality than the least fit (Mandsager, JAMA Netw Open 2018). A meta-analysis of cohort studies linked muscle-strengthening activity to 10–17% lower all-cause mortality, with the largest benefit around 30–60 minutes per week. The phase 3 CHALLENGE trial (NEJM 2025) showed a structured exercise program improved disease-free survival after colon cancer. Most fitness data are observational, so part of the association may reflect people who were healthier to begin with.

Key reference

Mandsager K, Harb S, Cremer P, et al. JAMA Netw Open. 2018;1(6):e183605

Considering this for yourself?

Many longevity therapies are experimental, off-label or not FDA-approved for aging. A physician-guided evaluation weighs your labs, history and goals before anything is started.

Educational content only. Not individual medical advice, and reading this site does not create a doctor–patient relationship. Many therapies described here are experimental or not FDA-approved for aging. Talk with your own clinician before changing any treatment.

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