Mondo Knows Facts
Muscle mass falls steadily from middle age
After about thirty, adults lose a small percentage of muscle each decade Muscle fibres shrink and some motor units are lost, with fast twitch fibres affected more than slow ones. The decline is roughly three to eight percent per decade after thirty and steepens later in life. Fat and fibrous tissue often replace part of the lost muscle. It sits in Mondo's human body collection, one of 200 facts that each trace back to the reference below.
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Tags: muscles, ageing, strength
Muscle mass falls steadily from middle age: the short answers
- Where does this come from, and can I check it?
- After about thirty, adults lose a small percentage of muscle each decade. The figure is taken from NCBI Bookshelf, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
- Is this really a human body fact?
- Yes. It sits on the Human Body shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
- What else can I read about it?
- The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.