Answer:
1. A feel good hormone.
Step-by-step explanation:
Dopamine is a neurotransmitter that is responsible for how we feel happy. Your nervous system uses it to send messages between nerve cells. That is why when someone uses drugs, they may feel pleasure, and take more, similar to how we want more sweets even after knowing it isn't good for you. This develops into addiction.
I am doing this lesson in Health class too!
Happy learning!
--Applepi101