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.
B. Adrenaline. This hormone is produced by the adrenal glands which lie at the tops of the kidneys. Normally a small amount of adrenaline is produced and this helps to maintain normal blood pressure.In situations of stress, however, where the body might be involved in fight or flight , a large amount of adrenaline is produced very quickly and this has a dramatic effect on the body. Adrenaline:t secretes adrenaline. Adrenaline. The hormone produced by the adrenal gland in response to stress or a 'fight or flight' situation. Fight or flight. The phrase used to describe a situation faced by animals and, presumably our ancient ancestors.