Amphetamine is a volatile liquid, C 9 H 13 N, is a central nervous system stimulant that releases noradrenaline neurotransmitter and activates celluar activites. 4 is an analgesic that induces euphoria. Nicotine inhibits MAO and hence raises level of dopamine with euphoric results. Low levels of dopamine is associated with Parkinson's disease. Endorphins are a group of peptide hormones that bind to opiate receptors and are found mainly in the brain.
Endorphins reduce the sensation of pain and affect emotions.
3 is a hormone secreted by the adrenal medulla, is released into the bloodstream in response to physical or mental stress, and is a vasoconstrictor that increases heart rate and blood pressure Ephedrine is an alkaloid C 10 H 15 CO that stimulates the nervous system and is used for allergies and asthma. Melatonin is a hormone derived from serotonin that is produced by the epineal gland at the base of the brain. Norepinephrine is a hormone and neurotransmitter, secreted by the adrenal medulla and the nerve endings of the sympathetic nervous system to cause vasoconstriction and increases heart rate. Serotonin is a neurotransmitter arising from emotional stimuli of the limbic system. It is an organic compound, C 10 H 12 N 2 O, formed from tryptophan and found in animal and human tissue, especially the brain, blood serum, and gastric mucous membranes, and active in vasoconstriction, stimulation of the smooth muscles, transmission of impulses between nerve cells, and regulation of cyclic body processes.