No amount of tobacco use has been proven to be safe. Because of the highly addictive nature of nicotine, smoking a few cigarettes in adolescence increases probability of nicotine dependence and is associated with a marked increase in incidence of adult smoking. A review of the evidence. Stages in the development of adolescent smoking. Medicine is a constantly changing science and not all therapies are clearly established.
New research changes drug and treatment therapies daily.
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