Inconsistent drugged driving laws show need for marijuana research
from By Denise A. Valenti
There is limited research on marijuana impairment related to driving, but it differs significantly than the impairments caused by alcohol. The uncertainty surrounding this issue has resulted in laws throughout the United States that vary in determining what constitutes driving under the influence of drugs and what the penalty is for doing so. Studies have shown that even small amounts of cannabis in the blood can impair the cognitive perceptual functions necessary for safe driving.
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