Which of the following statements about tobacco and addiction is true?
A)Nicotine is psychologically addictive,but evidence shows that it is not physically addictive.
B)Because of genetics,some people become physically addicted to nicotine while others do not.
C)Young people who start smoking become addicted,but people who start smoking as adults do not.
D)Some researchers believe nicotine is the most physically addictive of all drugs.

Question

Quizplus · Accepted Answer

Some researchers have indeed claimed that nicotine is more physically addictive than other substances, including heroin and cocaine. This addiction is caused by the release of dopamine, a neurotransmitter that creates feelings of pleasure and relaxation, in the brain's reward centers. Over time, these pleasure circuits become desensitized to nicotine, leading to increased use in an attempt to recapture the original feeling.

Which of the Following Statements About Tobacco and Addiction Is