Serotonin: Serotonin is a neurotransmitter responsible for regulating mood, appetite, sleep, and other important functions. It helps transmit signals between nerve cells and contributes to feelings of well-being.
Dopamine: Dopamine is another neurotransmitter involved in reward-motivated behavior and pleasure sensations. It plays a role in regulating movement, motivation, reinforcement learning, and cognitive processes.
Norepinephrine: Norepinephrine is a stress hormone and neurotransmitter that helps control alertness and arousal. It is involved in the "fight or flight" response to stressful situations.