Science news articles about 'history of marijuana'

... tissues. "The abnormal patterns of water diffusion that we found among the young men with histories of marijuana use suggest damage or an arrest in development of the myelin sheath that surrounds ...

... -Puget Sound-area men, ages 18 to 44, who had been diagnosed with testicular cancer about their history of marijuana use. For comparison purposes they also assessed marijuana use among 979 randomly ...

... defined smokers as people who reported smoking at least 365 cigarettes in their lifetime, and a history of marijuana smoking as self-reporting of any previous smoking. While tobacco smoking was ...