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.
Adrenaline is a hormone produced by the adrenal glands. It helps  regulate the central nervous system and certain other bodily  functions. Another name is epinephrine.  â¦ adrenaline is a hormone used for transmission of nerve impulses  throughout the body    when you get mad and get moving furiosly.