• Question: why do some people become more fit than others?

    Asked by Betty<3 to Dwaine, Andy on 15 Jun 2015.
    • Photo: Andrew Scott

      Andrew Scott answered on 15 Jun 2015:

      Some people exercise more than others, but I expect that even if I did the same training as Usain Bolt I could never run 100m in less than 10s. The difference is in our genes.

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