The goal is not just more years. It's more good years.
Longevity research increasingly distinguishes between lifespan, how long you live, and healthspan, how many of those years are lived in good physical and cognitive function. The interventions best supported by evidence are not exotic: consistent movement, strong social connection, good sleep, not smoking, and metabolic health each independently extend healthspan more reliably than most supplements marketed under the longevity label.
Key Points
Healthspan, years lived in good function, matters as much as total lifespan.
Strength and cardiovascular fitness in midlife are strong predictors of independence in later life.
Social connection is consistently linked to longer life and better cognitive health with age.
Chronic disease prevention, especially cardiovascular and metabolic, is the single biggest lever available.
Most longevity supplements marketed to consumers have limited human evidence behind the claims.