can you get addicted from one cigarette People who smoke just a day are likely He Became Addicted To Cigarettes
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THC, the active compound in marijuana, can stay in your system for days or even weeks, depending on frequency of use

They feel that they cannot function or survive without that drug. Smokers will often personalize their relationship with cigarettes, considering them like a best friend that has been with them through good times and bad, Selby says
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Since the publication of the 1964 Surgeon Generals Report (and even a decade earlier when it published its Frank Statement to cigarette smokers), the tobacco industry has been between a rock and a hard place: if a company has developed a new product that it considers to have a dramatically lower risk to health, then it must acknowledge that its other products are high risk, which the cigarette companies are still disputing in courtrooms in ongoing product liability lawsuits

They remove smell from the air but not from fabric or walls
