Lifespan is how long you live, while healthspan is the years you stay healthy...

https://aged-wiki.win/index.php/Why_Purpose_and_Connection_Are_Grouped_Together_in_This_Longevity_Framework

Lifespan is how long you live, while healthspan is the years you stay healthy and active. The U.S. faces a 12.4-year gap between lifespan and healthspan, meaning many years with illness