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One of the really interesting things about the nicotine¹ in cigarettes is that it works in two ways.
香烟中尼古丁的其中一个非常有趣的特质是，它以两种完全不同的方式工作。

All About Nicotine
尼古丁的特质

When you take a long drag, it acts as a tranquilizer, but when you inhale² in short puffs³, it acts as a stimulant⁴. And one of the side-effects of stimulants⁵ is that they suppress the appetite.
如果你长期吸烟，那么它会起到镇定剂的作用，但如果你只吸几口，它则会成为兴奋剂。而兴奋剂的其中一个副作用则是抑制食欲。

One of the most successful ad campaigns for cigarettes encouraged women to smoke instead of eat. And the fact is that cigarette smokers⁶ do weigh less on average than nonsmokers. Research shows that quitting smoking can make you gain between five and twelve pounds.
其中一个最成功的香烟广告活动就是鼓励女士们用吸烟代替吃饭。实际上，吸烟者通常的确比不抽烟的人体重要轻。调查发现，戒烟会导致体重增加五到十二磅。

Stop Smoking!
停止吸烟！

Physicians recommend moderate exercise like walking for thirty minutes, three times a week. Not only does exercise help control weight gain, it also helps ease the stressful feelings associated with quitting.
医生建议进行适当的锻炼，比如每周三次进行步行，每次步行三十分钟。运动不仅可以控制体重，而且能放松因戒烟导致的紧张情绪。

You can also try to limit alcohol and cut down on foods high in fat, but keep in mind that most experts think that it isn’t a good idea to go on a strict diet and try to quit smoking at the same time. You should focus on one health challenge at a time.
你也可以控制饮酒并减少高脂肪食物摄入，但请谨记，大多数专家不建议在戒烟的同时进行节食。你应该一次锁定一个健康目标。