20 Things You Didn't Know About Longevity

Exploring our age-old fascination with longevity.

By Jonathon Keats
Jun 11, 2020 12:00 PMJun 13, 2020 1:24 PM
lifespan longevity age time clock - shutterstock
(Credit: Anansing/Shutterstock)

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This originally appeared in the July/August issue of Discover magazine. Support our science journalism by becoming a subscriber.


1. Consider yourself lucky to be alive today: In preindustrial times, you could expect to live just 30 to 40 years. Now, the global average is 72.6.

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