Lifespan measures how long we live, but healthspan is about enjoying those...

https://www.first-bookmarkings.win/health-isn-t-just-about-how-long-you-live-but-how-well-you-live-this-is-the

Lifespan measures how long we live, but healthspan is about enjoying those years with good health. Marc Kielburger points out that in the US, people live up to 12.4 years longer, but often with illness or disability