Dont get me wrong, I love the pump, but I also get tired on them sometimes, even though Ive only taken them with stims. I know someone is gonna say "If they make you tired then lower your dosage" but that's not the point Im trying to make. Other NO products help a person produce more NO and pump up the part their working. Nitrates cause your blood pressure to drop, plain and simple. Even at a small dosage, I think it should really be discussed wether a hardtraining person should be taking a blood pressure dropper everytime they train. Shouldn't your vasculatory system have a little more resistance while your young to keep it strong? Could there be a long term disadvantage to taking too much stress of the heart?