<h1>National Institute of Health</h1>

Studies have shown that when smokers use vaporized nicotine for either supplemental or smoking cessation reasons, the vaporized nicotine produces similarly addictive and psychological effects as cigarettes. However, a report published by the US National Institutes of Health found that participants of the studies who used the inhaler alone did not meet ICD-10 or DSM-IV criteria for dependence on the substance
The health effects of using electronic cigarettes are currently unknown.

Some electronic cigarette companies claim that the harmful material produced by the combustion of tobacco in traditional cigarettes is not present in the atomized liquid of electronic cigarettes. Some have also marketed electronic cigarettes as a way to curtail an addiction to nicotine. Despite these claims, a number of regulatory agencies have issued warnings regarding the health effects of these products. The recently-formed Electronic Cigarette Association aims to eliminate unsubstantiated health claims made by electronic cigarette companies, and those companies that wish to participate in the association must agree to refrain from making such claims.