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

https://wiki-tonic.win/index.php/What_Is_Marc_Kielburger_Known_For_and_Why_Is_He_in_Longevity_News%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