question 2 of 6\ndrugs that affect the brain by increasing ________ activity are the most commonly misused…

question 2 of 6\ndrugs that affect the brain by increasing ________ activity are the most commonly misused ones.\ninsulin\nmelatonin\ndopamine\nadrenaline
Answer
Brief Explanations:
Drugs that increase dopamine activity in the brain are highly addictive and commonly misused as dopamine is associated with the brain's reward - system. Insulin is related to blood - sugar regulation, melatonin to sleep - wake cycles, and adrenaline to the body's stress response.
Answer:
C. dopamine