1
Inhibitory - Stimulates emotions, feelings of fear anxiety; Feeling of motivation and reward; Learning and memory; Appetite; Sexual behaviour
2
Excitatory - Neurotransmitter and hormone; Increases energy production and breaks down stored carbohydrates; Increases heart beat, blood flow and oxygen to muscles and brain; Helps in attention and learning
3
Excitatory - Neurotransmitter and hormone; Increases energy production and breaks down stored carbohydrates
4
Both Inhibitory and Excitatory - Released during exercise, excitement and sex; Produces a feeling of well-being and euphoria and reduces pain
5
Inhibitory - Makes you feel calm, peaceful, balanced, and staple, including desires and choices for food; Regulated sleep cycle
6
Excitatory - Helps in attention, focus, memory, and problem solving