They'll tell you caffeine has no effect on you studying, they'll tell you sugar will make you sleepy, they'll tell you food supplements are just a fad, but in the end nothing will get you going other than this steaming hot cup of coffee, the gazillion-calorie chocolate bar and the 2 pills of food you shove in your mouth after the first two.
My body is still exhausted, my eyes are blurry, but my brain is awake and that's all I need because it's the only organ that works during exams.
So, to all legal stimulants and to many more human generations of ZOMBIE freaks.
Thank you education system!!!