Mixing drinks can be self-destructive in the truest sense of the word.

Energy drinks hold more caffeine than coffee. Caffeine is the chemical component that tricks the brain into thinking it still has energy to spare to get away with staying awake.

Strong Liquor unsurprisingly holds alcohol. In contrast to caffeine alcohol has a numbing effect on the brain. It lowers awareness and certain inhibitions.

Together caffeine and alcohol can induce a 'state' of lowered awareness, but a grant a 'feeling' of heightened awareness. The real danger of these components essentially stems from the damaging effects to digestive organs and brain going overlooked. Even though people are free to mix their drink in responsible fashion and company for re-creative purposes, it can do no harm to provide some self moderation and be mindful of the effects of energy drinks and alcoholic beverages.