"In order to build the body up you must break it down first" The body utilizes energy stores and recruits muscle fibers to power through a workout. Post workout, muscle fibers will develop tiny tears from being challenged (This is what facilitates muscle growth) and lactic acid (A by-product of ATP energy) will build up in the muscles also causing soreness. After excercise the body's insulin and energy levels are low, muscles temporarily break down as the body utilizes protein to repair itself, and stress hormones such
