Healthspan is about living those years in good health, not just longer....

https://fair-wiki.win/index.php/Is_There_a_Best_Diet_for_Healthspan,_or_Is_That_Not_the_Point%3F

Healthspan is about living those years in good health, not just longer. Lifespan counts total years, but many face a 12.4-year gap in the US between living longer and feeling well