Dopamine is a neurotransmitter, which is a chemical that is produced and released by nerve cells in the brain. It plays a number of important roles in the body, including controlling movement, regulating pleasure and reward, and helping to regulate mood.
Dopamine is produced in several different areas of the brain, including the substantia nigra, the ventral tegmental area, and the nucleus accumbens. It is involved in a variety of functions, including learning, motivation, and memory.