Originally Posted by
MoAlpha
Cramps are caused by dehydration and/or electrolyte losses.
One of my favs! Cramping is overexertion, going too hard/far for your fitness/endurance. Being a former runner, used to love hearing people talk about hitting the wall during a marathon. There is no wall, there is only a person running too fast for their current fitness, pace it properly and you'll have no problems holding that pace all the way to the finish.