Adrenaline, also known as epinephrine, is a stress hormone secreted from the adrenal glands on the kidneys. Epinephrine plays a major role in preparing the body for a fight-or-flight reaction in threatening environments. An adrenaline rush increases the secretion of adrenaline from the adrenal glands when the brain communicates during a possible fight-or-flight response. An adrenaline Read More…