The drugs are normally prescribed to treat attention deficit hyperactivity disorder (ADHD), but healthy students use them to get a leg up in school, by improving focus, concentration and memory.
Adrenaline, or epinephrine, is a hormone that dilates an individual's air passages and increases his heart rate when he is faced with a stressful situation. The hormone is secreted from the adrenal glands to help ensure survival under dangerous situations.
This is because an adrenaline rush will give you a large amount of energy as the body releases glucose and sugar directly into your bloodstream. Because everything happens so fast during an adrenaline rush, your breathing and your heart rate will jump suddenly.n adrenaline rush gives you a great deal of strength throughout your body. An adrenaline rush can also be used to protect your body. If you've ever played a sport and injured yourself, there's a good chance that, initially, you didn't feel much pain.