PROVIDENCE, R.I. [Brown University] — Dozens of studies on whether moderate exercise can curb the nicotine cravings of women smokers have added up to an apparent contradiction: it seems to work in short-term, well controlled lab experiments, but then fizzles out in treatment trials.

New Haven, Conn. — Despite studies that show that whites are more likely than blacks to misuse prescription pain medications, a new study reveals that blacks are significantly more likely than whites to be checked for potential drug abuse.

Ecstasy, one of the most popular “recreational” drugs in Australia over the past two decades, is becoming less popular with regular users, consistent with global trends, say the authors of a new report from the National Drug and Alcohol Research Centre (NDARC) at the University of New South Wales.

(SACRAMENTO, Calif.) — Research has demonstrated that smokers are far more likely to quit if their doctor or other health-care provider advises them to do so, but new research from UC Davis has found that Asian-Americans are not getting the advice as often as the general population.

Disease-modifying drugs (DMDs) are injected medications used to slow the progression of multiple sclerosis (MS), and have been shown to reduce the frequency and severity of relapses.