Have you ever been so sore after a workout or training session that you had trouble sitting down or even walking the street?  That kind of extreme soreness is your body’s way of expressing “you did too much”!  For a long time, many people believed this soreness, which is called delayed onset muscle soreness (DOMS), was caused by lactic acid build-up.  Not true!  And to my chagrin, I still hear trainers and PT’s spouting the negative effects of lactic acid.  We don't even have