What are two examples of neurotransmitters?

* Dopamine is a neurotransmitter that is involved in reward, motivation, and movement. It is released when we experience something pleasurable, such as eating a delicious meal or getting a promotion at work. Dopamine also helps us to learn and remember new things.

* Serotonin is a neurotransmitter that is involved in mood, sleep, and appetite. It is released when we feel happy, relaxed, or loved. Serotonin also helps us to regulate our body temperature and heart rate.