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Where to begin? 1) The mice are genetically rather similar to one another; the bodybuilders are not. 2) The mice are under identical diets; the bodybuilders a
by at_a_remove 6y ago
Where to begin?
1) The mice are genetically rather similar to one another; the bodybuilders are not.
2) The mice are under identical diets; the bodybuilders are not.
3) The mice are all on the same amount of the substance; the bodybuilders are not.
4) The mice aren't all on anything else; the bodybuilders are likely each on a highly individualized regimen of supplements, particular foods, medicines (prescribed or not).
5) The mice are near a critical age when you can see the effects of aging take place; the bodybuilders are not.
6) The mice can be sacrificed and autopsied at whim; the bodybuilders cannot.
And so on and so forth.
- User23 6y agoAnother obvious confound is that body builders engage in regular resistance exercise which is proven to promote skeletal, muscular, and neural health. Anecdotally I know a man who is in his 90s and still lifts and cycles regularly and has for the past 40 years. He is definitely suffering the effects of aging, but when, for example, he falls his bones don't break and he's able to continue on. He's dealt with other medical conditions that normally wouldn't be treated in a man his age. But because of his good health, the doctors have gone ahead and gotten good outcomes. He also hasn't drank or smoked in the past 40 years either though, so there's another confound.