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The takeaway from this, if you're lazy like me:

> In line with this, observational studies suggest that exercise has a statistically significant preventive effect on premature all cause mortality with active individuals showing up to a 72% lower risk of premature mortality from all causes compared with inactive individuals



—-> on the elderly. This study makes zeros claims about any other age group.


That's a summary of other, prior research (and observational, this one is randomized).




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