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A sizable body of work points to the ability of older individuals to continue to obtain benefits through regular physical activity, and particularly in the case of strength training. A perhaps surprisingly large fraction of what is commonly regarded as an inevitable decline in physical fitness and muscle quality with age is in fact the result of lifestyle choices – in particular the choice to exercise less, and the failure to work on maintenance of strength in muscles. We live in an age of comparative comfort, surrounded by low cost transportation machinery, calories, and tools to substitute for physical effort. The result is a growing number of people who are weak and overweight in comparison to their ancestors. Those ancestors still had a much worse time of it, of course, given the absence of modern medicine and sanitation, but we sabotage ourselves nonetheless.

the case of strength trainingabsence of modern medicine and sanitation

Today I’ll point out a few recent papers on activity and strength (or lack thereof), and the benefits realized (or lost). They may for interesting reading, but I think it is important to bear in mind that this is only of interest because exercise is essentially free, and is

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