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

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

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