Slow muscles are more important for cardiorespiratory fitness because they efficiently use oxygen.
HIV and AIDS :-
HIV infection is difficult to cure even by multiple treatment with multiple medications because this is a kind of highly communicable virus and it decreases the resistance of our body everytime . Up to date there is no systematic and effective treatment for this . Slightly it affects the whole system of our body and does not get easily treated with any special medications .
I would say that they can't swallow. that's why they have the umbilical cord.
