So you take energy productsbut no matter which one you take theres a downside. Some make you too jittery some wear off too soon others give you a headache or lose their kick" after just a few days. & then theres those nastytasting energy shots that mess with your stomach if you can get past the taste Back in the day products containing ephedra ephedrine were the best answer. When dosed just right youd be good to go for hours. But even ephedra products had their downside youd