Noradrenaline is a catecholamine neurotoxin type of hormone that is manufactured as a drug and is produced naturally in the human body. Also called norepinephrine, especially by workers in the medical field, and that the hormone acts on the parts of the brain dealing with the response and fear. A decision to this neurotransmitter in the blood by the adrenal glands and nerves of the brain called adrenergic nerves. A drug, is commonly used to control the catecholamines noradrenaline to treat low blood pressure and other chronic neurological depression.Like and chemical called noradrenaline series of nerve cells when the body needs to spring into action. When an object needs to move quickly to pressures, and this neurotransmitter increases blood pressure and heart rate, and gets the muscles ready for flight or fight. Can be very little of this chemical in the body leads to a person becomes lethargic and sleepy. Those with low levels of noradrenaline is generally difficult to stay awake, focus, and attention to tasks. Can be high levels of this chemical in the body mirror overdose symptoms, including nervousness, racing thoughts, cold hands and feet, high blood pressure.