Describes research exploring differences and similarities in the genetic profiles of African-Americans and European-Americans who are heavy smokers.
Describes research revealing that for up to 6 weeks after smokers quit, their brain cells have more nicotine-binding receptors than nonsmokers, which may explain the struggle to quit.
Describes research providing evidence that genes may influence how successful a person is in quitting smoking and which cessation technique may work best for them.
Highlights findings from a study showing that nicotine triggers a surge in levels of the neurotransmitter dopamine in the brain's main reward area for cigarette smokers.
Compares data on substance abuse and sexual risk among college students and their peers who do not attend college.
Discusses 2009 prevalence rates of cigarette, alcohol, prescription drug, and illicit drug use among adolescents and discusses trends in use over time.