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

https://wiki-stock.win/index.php/Healthspan_vs_Lifespan_for_Caregivers:_What_Should_We_Watch_For%3F

Healthspan means the years you live in good health, not just how long you live. While the US enjoys a longer lifespan, there’s a 12.4-year gap where many live with illness or disability