Current Events > What's the biological reason for losing muscle as we age?

(+) Yeah! (+)

The older you get, the less muscle and more fat our bodies get.

What's the actual reason?

If someone at 50 put in the same work in the gym as he was when he was 30, can he achieve the same body?
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It's multifactoral and has unknown factors, but one reason is that the protein synthesis to make muscle cells from amino acids has degraded on the older person. Now how that happens and why I dunno.
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