• Question: When you get older why do you become less active?

    Asked by Science rules to Sara, Richard, Peter, Carolyn on 20 Nov 2015.
    • Photo: Richard Unwin

      Richard Unwin answered on 20 Nov 2015:

      Hi Science Rules – nice username,
      As we get older we get very slowly weaker and physically less able – our bones become more brittle and we lose muscle mass, for example. This means that it can be more effort for use to do the same thing we used to do, with the result that overall we end up having to become less active, or else you will just get too tired.