Definition: A "neurotransmitter" is a chemical in the body released by cells in nerves that transmits impulses from one nerve to another, or from a nerve to a muscle, tissue or organ in the body. A neurotransmitter basically sends information from one cell to another cell in the body. Some insomnia medications affect "dopamine" which is a neurotransmitter in the brain responsible for sleep and other physical functions. Researchers have named 50 different neurotransmitters in the body that are responsible for functions other than sleep.
Also Known As: neurotransmitters "chemical transmitters"
Common Misspellings: neurotransmiter
Examples: Certain medications affect dopamine, which is a neurotransmitter in the brain that underlies sleep and disorders like anxiety or depression.