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Science deep dive

Longevity

What Is Sarcopenia? Muscle Loss, Strength and Diagnosis

Sarcopenia is more than muscle loss. Learn how it differs from dynapenia and myopenia, how doctors diagnose it, and what the research says helps.

Oct 16, 2026 · 8 min readRead →

Science deep dive

Longevity

Muscle Is an Organ: What It Needs to Survive

Muscle does more than move you: it sends signals to other organs. Learn why that matters and the two inputs muscle needs as you age.

Oct 15, 2026 · 6 min readRead →