1: The action of heroin (morphine)
Heroin is an addictive drug, although not all users become addicted. Environment and the personality of the user are important in producing addiction. Heroin produces euphoria or pleasurable feelings and can be a positive reinforcer by interacting with the reward pathway in the brain. Indicate that you will explain how this happens.
Explores the consequences of drug abuse on the brain and body and introduces the topics of prevention, and treatment.