While e-cigarettes are often marketed as safer alternatives to tobacco cigarettes, studies, such as one by researchers at the Harvard School of Public Health, have found that they contain harmful chemicals like nicotine, formaldehyde, and in some cases, diacetyl, which can cause the incurable "popcorn lung." Furthermore, e-cigarettes are particularly appealing to the youth, partly due to flavorful varieties resembling candy and fruit, leading to a worrisome increase in use among middle and high school students
Chronic crack use can lead to digestive issues, such as ulcers and gastrointestinal bleeding
21,22 FDA-approved NRT options include gum, lozenges, transdermal patches, a nasal spray, and an oral inhaler ( TABLE 1 )
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