Add Yahoo as a preferred source to see more of our stories on Google. Healthspan measures incorporate quality of life in ways that lifespan does not. Ira T. Nicolai/The Image Bank via Getty Images Do ...
Do you ever wake up some days and think, “When I was younger, I could survive on just four hours of sleep, but now it seems like I need 10”? Or have you ever walked out of the gym and “felt” your ...
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