Project CBD is made possible by the support of our partners.

“The degree of impairment resulting from recent cannabis use is difficult to distinguish from other conditions such as advancing age or use of certain medications,” according to a review in The American Journal of Drug and Alcohol Abuse.

It begs the question of why cannabis should be treated differently.

Read study: Strengths and limitations of two cannabis-impaired driving detection methods: a review of the literature


Adrian Devitt-Lee is a research scientist and longtime Project CBD contributor. © Copyright, Project CBD. May not be reprinted without permission.


More from this category