Healthspan means how many healthy years you live, not just how long you live....

https://www.medicaldaily.com/marc-kielburger-healthspan-vs-lifespan-why-purpose-belongs-longevity-conversation-478751

Healthspan means how many healthy years you live, not just how long you live. While average lifespans rise, the gap between lifespan and healthspan can be big—12.4 years in the U.S. alone