Adrenaline is a hormone, and is secreted from the adrenal glands-which are situated just above the kidneys.Whenever you are nervous or excited, your body will secrete this hormone; because your brain sends messages along nerves to the adrenal glands, which tells them to secrete adrenaline into the blood stream.The function of adrenaline is to prepare the body for something (whatever is making you nervous).henever you are nervous or excited, your body will secrete this hormone; because your brain sends messages along nerves to the adrenal glands, which tells them to secrete adrenaline into the blood stream. The function of adrenaline is to prepare the body for something (whatever is making you nervous).
heat stroke. n. A severe condition caused by impairment of the body's temperature-regulating abilities, resulting from prolonged exposure to excessive heat and characterized by cessation of sweating, severe headache, high fever, hot dry skin, and, in serious cases, collapse and coma.eat stroke. n. A severe condition caused by impairment of the body's temperature-regulating abilities, resulting from prolonged exposure to excessive heat and characterized by cessation of sweating, severe headache, high fever, hot dry skin, and, in serious cases, collapse and coma.
There three types of heat-related injuries: 1  Heat cramps. These are painful muscle cramps, usually in the stomach, arms, or legs, that may occur during heavy activity. 2  Heat exhaustion. This is the body's response to losing too much water and salt in sweat. 3  Heat stroke. This is the most serious type of heat-related injury. Heat stroke, also known as sun stroke, occurs when the body becomes unable to cool itself down. The body's temperature may rise to 106 degrees Farenheit or higher within minutes. If heat stroke is not treated quickly, it can lead to brain damage or death.