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

https://hannahsinterestingcolumn.capitaljays.com/posts/what-are-the-three-parts-of-the-longevity-trifecta-again

Healthspan means the years you live in good health, not just how long you live. While the US has a 12.4-year gap between lifespan and healthspan, focusing only on adding years misses the point