People who smoke cannabis and drive may be more likely to take risks and be involved in accidents even when they are not 'under the influence.' Researchers at the University of Montreal in Canada studied 83 men between the ages of 17 and 49. 30 of them admitted to smoking cannabis, of whom 80% said they had driven under the influence in the past year. The participants also took personality tests and a driving test in a simulator. People who had driven after taking cannabis scored higher for sensation-seeking and impulsivity on the personality tests and were more likely to have engaged in risky driving and to have road rage. 'Drug drivers' drove more riskily and were more likely to be involved in crashes in the simulator tests and were more likely to have drunk-driven as well.
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