Stitches in the gym
I know that stitches (that sharp pain in your side you can get when exercising) are caused by a build up of lactic acid which is produced when your body is undergoing anaerobic respiration, which it does when your body doesn't have enough oxygen to get the energy it needs to the muscles which need it. What I want to know is this: is the lactic acid produced when fat is burned? So is pushing myself to the point of getting a stitch a good thing (considering that I do slow down and get some air if I get a stitch), or should I take it slower so I don't get them?