It really depends on their age. You also cant just assume all patients are on birth control.
<span>I think it is congenital heart disease</span>
They are all cells, they all have the same function
Okay, this is an interesting one but mainly no, most activity's will so you don't push yourself but if you really wanted to you could go for however long you want as long as you are not doing harm to your body, depending if you are on a fitness program there will be limits.
