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

https://rafaelsgreatinsights.cavandoragh.org/what-does-health-adjusted-life-expectancy-mean-in-who-data

Healthspan means the years you live in good health, not just the total years you’re alive. While the U.S. sees a 12.4-year gap between lifespan and healthspan, meaning many years with illness, purpose and connection can help close that gap