Marijuana check

One very interesting research study used what was called a marijuana checkup to encourage people in the community to seek an assessment of their marijuana use (Stephens, Roffman, Curtin, 2000). The study was advertised as a way for marijuana users to get a check-up to make sure their marijuana use was not causing any unseen problems. When the person arrived at the center, he or... 

In a study conducted by the National Highway Traffic Safety Administration, a moderate dose of marijuana alone was shown to impair driving performance however, the effects of even a low dose of marijuana combined with alcohol were markedly greater than for either drug alone. Driving indices measured included reaction time, visual search frequency (driver checking of side streets), and the ability to perceive and/or respond to changes in the relative velocity of other vehicles. ... 

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