You can open up a centenarian's brain, and you'll see some...

You can open up a centenarian's brain, and you'll see some areas that look like that of a 50-year-old or of a 110-year-old. You can have variation in the basic process of aging, called senescence, in different parts of the same body.

S. Jay Olshansky Quote About Areas, Basic, Open, Parts, Process: You Can Open Up A...

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