Healthspan is how long you live free from serious illness, while lifespan is...

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

Healthspan is how long you live free from serious illness, while lifespan is total years lived. Globally, there's a 9.6-year gap between these two, and in the US, it’s even wider at 12.4 years