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SINCE 1828
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health span

noun
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Definition of health span

: the length of time in one's life during which an individual is in reasonably good health A revolutionary increase in life span has already occurred. A corresponding increase in health span, the maintenance of full function as nearly as possible to the end of life, should be the next gerontological goal.— John W. Rowe and Robert L. Kahn Several genetic studies in mice suggest that the elimination of senescent cells from the organism leads to extension of the mouse's health span and lifespan.— Judy Siegel-Itzkovich

First Known Use of health span

1931, in the meaning defined above

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The first known use of health span was in 1931

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“Health span.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/health%20span. Accessed 24 Feb. 2020.

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