Take the quiz. Find out how many healthy years your workout is adding to your life — and where small shifts could add more.

• Scored on 8 research-backed longevity markers — from aerobic capacity (one of the strongest predictors of all-cause mortality) to grip strength (more predictive than blood pressure) to social connection (as powerful as quitting smoking).

• Your highest-leverage opportunities — the specific small changes that will have the greatest impact on how long and how well you live.

• Actionable steps matched to your level — not generic advice, but specific next moves based on how you train right now.

Takes 5 minutes. What you learn could change how you train for the next 30 years.