If cigarettes contained no addictive substances, the brain's dopamine neurons would be:
A) overstimulated by smoking
B) less affected by smoking
C) unaffected by smoking
D) easily activated at first, but would be inactive after the first cigarette

Question

Quizplus · Accepted Answer

Dopamine is a neurotransmitter responsible for pleasure and reward in the brain. It is released when we engage in pleasurable activities or when we use drugs that stimulate the reward pathway. Nicotine, a highly addictive substance in cigarettes, increases the release of dopamine in the brain, leading to feelings of pleasure and reward. If cigarettes contained no addictive substances, the brain's dopamine neurons would be less affected by smoking because there would be no substance to stimulate the release of dopamine. Thus, choice B is the best answer.

If Cigarettes Contained No Addictive Substances, the Brain's Dopamine Neurons