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

https://bizzmarkblog.com/purpose-ideas-after-retirement-that-do-not-involve-starting-a-business/

Healthspan means the years you live in good health, not just how long you live. On average, people worldwide face a 9.6-year gap between lifespan and healthspan, and in the U.S., it’s even bigger at 12.4 years