What type of neurotransmitters are serotonin and dopamine?

Serotonin and dopamine are both types of monoamine neurotransmitters, which are derived from amino acids. Serotonin is primarily involved in regulating mood, appetite, and sleep, while dopamine plays a key role in reward, motivation, and motor control. Both neurotransmitters influence various physiological and psychological processes in the brain and body. Their balance is crucial for mental health and well-being.