50-year-old muscles just can’t grow big like they used to – th | Hi IELTS

50-year-old muscles just can’t grow big like they used to – the biology of how muscles change with age

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https://theconversation.com/50-year-old-muscles-just-cant-grow-big-like-they-used-to-the-biology-of-how-muscles-change-with-age-172941