Grandkids Could Be One Reason Humans Live Long Lives

Grandkids Could Be One Reason Humans Live Long Lives

For humans, life isn’t nearly as short as it is for other primates, whose minds and bodies start to deteriorate around the time they reach the end of their reproductive years. Once an animal has created offspring, it has done the heavy lifting of evolution.

We, on the other hand, can continue on well past the time when the kids have flown the coop and sometimes celebrate birthdays measured in triple digits. So why do our bodies bother holding themselves together when we’re no longer passing on our genes?

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