octubre del 2009
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.
Highlights trends from a 2008 survey of teenage substance abuse, cigarette smoking and alcohol use and discusses the implications of these changing data.
Describes research exploring differences and similarities in the genetic profiles of African-Americans and European-Americans who are heavy smokers.
Highlights prevalence rates of cigarette and marijuana smoking among teens who exercise regularly as compared with their less active peers.
Reports on research providing evidence that teaching aggressive youngsters social coping skills reduces their chances of becoming substance abusers.
noviembre del 2009
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.
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.
diciembre del 2009
Compares data on substance abuse and sexual risk among college students and their peers who do not attend college.
Reports study results suggesting that genes for several acetylcholine receptor proteins influence early smoking responses and the likelihood of nicotine dependence.
abril del 2010 Describes an animal study reporting that peer interaction enhances adolescent rats’ drug reward and discusses the impact of these findings to future research on drug reward in social context.