This has been attributed to differences in tobacco-use behavior, including the high prevalence of menthol cigarette use, which may confer deeper inhalation of nicotine and tobacco toxins, as well as the fact that nicotine binds to melanin, meaning blacks get more nicotine per cigarette than other racial groups
Taylor Argo, an adolescent medicine fellow at the University of Michigan, told The Independent
However, drawbacks consist of side effects such as skin irritation from patches, gastrointestinal discomfort from gum or lozenges, and the potential for continued nicotine dependence if not used as directed
Tracing the Cigarettes Path from Sexy to Deadly. New York Times (New York, NY), March 20, 2007
Hidden Depths: Jesse surprises Walt with his depth of knowledge of cancer treatment, because he looked after his aunt when she was dying from it