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> In fact, it is extraordinarily consistent. Outside of disease processes anyone who takes up training like an athlete will begin matching the physique of an athlete. People are athletes buy choice, not by physiological imperative, and this is proven out extensively by people who take up athletic behavior anywhere at any time in life.

They only become athletic if they keep doing it, and many people are for a variety of reasons unable to keep doing it, which is why "exercise to lose weight" is unhelpful advice and is no longer part of the public health message on obesity. It's still really important to get people to exercise. Just don't claim weight loss as one of the benefits.



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