Tough on Drugs

In earlier studies, researchers had found that estrogen -- or more precisely, having ovaries -- made adult rats exposed for the first time to THC, the primary ingredient in marijuana and hashish, less sensitive to THC's negative effects on tests of learning and memory. A new study finds that when rats are first exposed to THC during the equivalent of adolescence, however, estrogen loses its protective effect.

Posted on Mon, 20 Apr 2009 11:00:00 EDT at http://www.sciencedaily.com/releases/200...133830.htm