Reports on scientists who pinpointed the biochemical trigger from morphine that sets off a chain reaction that inhibits an immune cell that is key in fighting viruses and cancer.
Reviews the changing lifespan of heroin abusers as compared with that of the general U.S. population based on 1962-1997 data.
Reports on evidence that toluene abuse can harm the nervous system and body, although scientists know relatively little about its specific actions.
Reports on research showing that newborns whose mothers abused methamphetamine during pregnancy showed lower rates of fetal growth as compared with unexposed newborns.
Describes research providing evidence that maternal smoking during pregnancy contributes to behavioral conduct disorders among toddlers, school-age children, and teens.
March 2008 Summarizes research on the effects of long-term regular cocaine abuse on the cardiovascular system in African Americans.
October 2007 Reports on an animal study finding that links anabolic steroids to brain changes in adolescent female mice, changes that can potentially lead to steroid abuse.
Highlights research on the effects of steroid use on the brain and the rest of the body, and stresses the need to educate young people about the serious health risks associated with its use.
October 2006 Highlights two studies suggesting significant associations between marijuana smoking and respiratory disease.
Summarizes research suggesting a physiological difference as the explanation for African-Americans' reported low tolerance for pain.