Johns Hopkins Guides provide diagnosis, management, and treatment guidance for infectious diseases, diabetes, and psychiatric conditions. Explore these free sample topics:
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- Tobacco use disorder is a cluster of behavioral, cognitive and physical characteristics that occur in persons who are regular cigarette smokers or users of other tobacco products.
- Nicotine is the active ingredient in tobacco that triggers dopamine release and leads to the pleasurable effects of smoking.
- Chronic nicotine exposure results in tolerance and physical dependence.