NYT article summarized:

– The question: can you regain muscle as you get older?
– “Sedentary adults can lose 30-40% of the total number of fibers in their muscles by the time they are 55.”
– Two things happen to muscle as we age: some die, some simply weaken if unused.
– Those that die can not be regained.
– Those that remain can be strengthened and can increase in size.

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