Your psychology also half depends on how much you inspire yourself that they have an effect. And a bit of fanaticism)
If you approach a drink with no mood and treat yourself with skepticism, then you will say to yourself: - coffee will suit me, and quit drinking energy drinks)
Much depends on how sensitive you are to caffeine in principle. If, after drinking it in its pure form or through coffee, you also do not feel any changes at all, then there will be no big sense from energy drinks.
At work - a blockage, at home, too, do not rest normally ... The head can not stand it.