A new study suggests that using marijuana before sleep has minimal if any effect on a range of performance measures the next day, including simulated driving, cognitive and psychomotor function tasks, subjective effects and mood. The report, which drew data from a larger study investigating the effects of THC and CBD on insomnia, looked at … Continue reading Cannabis Use Before Bedtime Does Not Cause Next-Day Impairment Of Cognitive Ability Or Driving Performance, Study Shows