Which of the following has NOT been found as an effect of regular marijuana use?
A. Decreased testosterone levels in men.
B. Decreased sperm counts in men.
C. Increased testosterone levels in men.
D. Increased heart rate in men and women.
Question 2
Studies of the effects of marijuana on automobile driving show
A. consistent impairment in experienced and inexperienced users.
B. no reliable impairment under a variety of circumstances.
C. that chronic marijuana users have a much higher rate of traffic accidents.
D. significant impairments when inexperienced users are studied in a laboratory environment.
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