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"Our findings suggest that to maintain good physical health-related quality of life at around age 70, one may be able to "make up" for not being active earlier by becoming active in the mid-50s," write the research team, led by scientists at the University of Sydney.
You know, I have always kind of worried about this. It is said your heart has only so many beats in it. But when you exercise hard, you make it beat more/faster. Essentially shortening your lifespan, right? But it actually strengthens your body, right? I feel a lot of things can be backwards. How much is too much? When do the gains become losses?
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