Healthspan means the years you live in good health, not just the total years...

https://www.last-bookmarks.win/healthspan-is-about-the-years-you-live-in-good-health-not-just-how-long-you

Healthspan means the years you live in good health, not just the total years you’re alive. While the U.S. sees a 12.4-year gap between lifespan and healthspan, meaning many years with illness, purpose and connection can help close that gap