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While laboratory studies of people with THC in their bloodstream do not support significant impairment on single tasks, such as memory, addition, or subtraction, there may be a more significant impact on multitasking and handling unexpected events (which are critical components of safe driving).

Adult Tips:

  • Too many teens and their parents don’t know the facts about cannabis and driving.

    • In a 2017 SADD/Liberty Mutual Survey, 33% of teens and 27% of their parents surveyed thought it was legal to drive under the influence of marijuana in states where marijuana is legal to use.

  • Neurodevelopment continues until at least the early or mid-20s, and cannabis use impacts how connections are formed within the brain.

    • Discuss these long-term effects with your teen.


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