Question: when your sick what why are mussles week is it becuase of the cells

Peter Boorman answered on 14 Nov 2016:

I think your muscles feel weak when you’re ill for different reasons, depending on the type of illness. For example, I believe that for some illnesses, the muscle tiredness is just due to a lack of energy, because your body uses up excess energy in trying to fight off the illness. However, other illnesses effect the muscles directly.

Peter