I have been drinking Red Bull for 2 years and i thought it was wonderful... It does give you a boost but to name but a few it also rots your teeth (sugar content!) Because it is a stimulant its good but only in short bursts. I have recently suffered from migraines as a result and now i don't touch it... Its everyone's personal opnion but personally if u need energy drink water, get 8 hours sleep and take regular exercise. The short term is never an answer. RED BULL IS THE DRINK OF THE DEVIL!!!! Having been in hospital as a result, be warned