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== Nicotine addiction ==

* Nicotine is a stimulant that is the main psychoactive element of cigarettes.
* Nicotine is an agonist at nicotinic acetylcholine receptors in the brain.
* Nicotine in smoked tobacco is addictive.
* Nicotine causes disturbances to reward and cognitive processing.
* Cigarette smoking presents considerable health risks.
* Cigarette smoking induces high costs on healthcare resources.
* Smoking cessation medications and safer nicotine products (e.g. e-cigs) are now available to treat nicotine addiction

 • 尼古丁是一种兴奋剂，是香烟的主要精神活性成分。
 • 尼古丁是大脑中烟碱乙酰胆碱受体的激动剂。
 • 烟熏烟草中的尼古丁会让人上瘾。
 • 尼古丁会干扰奖励和认知处理。
 • 吸烟会带来相当大的健康风险。
 • 吸烟会导致医疗保健资源的高成本。
 • 戒烟药物和更安全的尼古丁产品（例如电子烟）现在可用于治疗尼古丁成瘾

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