Consider: Listening to music
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Tobacco products have claimed the lives of many consumers, but when laced with faster-acting toxins their potential for getting away with murder is clear: the victims administer the poison themselves as the evidence goes up in smoke

Up to 35% of smokers are able to abstain from tobacco for 1 year when a combination of nicotine replacement therapy (NRT), bupropion, and behavioral modification techniques are utilized.[9] Medical support Nicotine withdrawal in addicted individuals is characterized by craving, nervousness, restlessness, irritability, mood lability, anxiety, drowsiness, sleep disturbance, impaired concentration, increased appetite, and weight gain.9 Nicotine replacement therapy mitigates these symptoms during early abstinence, and therefore doubles the cessation rate.[9-11] In general, NRT has few side effects, with most complaints being specific to the method of administration (i.e., itchiness at the patch site, jaw pain with gum, mouth and throat irritation with the inhaler and lozenge, and a runny nose with the inhaler)
nicotine: 1.2 mg