Question

Many of the drugs of abuse share the tendency to increase levels of which neurotransmitter in the brain?​

Answer 1

Dopamine

Step-by-step explanation:

• Drugs of abuse that are commonly abused by people are alcohol, cocaine, MA, heroin, marijuana, nicotine.
• Most of these drugs increase the level of dopamine in the brain.
• Dopamine is an amine neurotransmitter which generates feelings of pleasure and thus creates a sense of euphoria.
• Further, this neurotransmitter is also responsible for reward behavior and thus generates a feeling of satisfaction in the abuser.

Answer 2

Drugs of abuse such as methamphetamine and morphine increase the levels of dopamine in the central nervous system. Dopamine has a variety of functions but functions mainly in motivation and reward mechanism. People doing drugs of abuse create a pleasurable sensation in which there is a dopamine surge every time they use drugs. In the absence of drugs, the body "looks" for the pleasure thereby causing the person to be drug-dependent and addicted.