#35 Clinical Context
Background information relevant to the evolving cannabis medicine landscape.
Cannabis use among teen and young adult drivers raises critical safety concerns for clinicians counseling patients about substance use risks and driving impairment. Clinicians should screen adolescent and young adult patients for both cannabis use and unsafe driving behaviors, as these may co-occur and significantly increase motor vehicle injury risk. Parents seeking guidance on teen safety need evidence-based counseling about marijuana’s effects on driving ability and judgment, making this epidemiologic data relevant for anticipatory guidance in clinical practice.
This national poll reveals that marijuana use among teen and young adult drivers remains relatively low at 2%, yet aggressive driving behaviors are prevalent, with nearly half of parents reporting witnessing speeding, tailgating, or other risky driving in their children. While cannabis-impaired driving is not the dominant factor in this population’s unsafe driving patterns, clinicians should recognize that any substance use combined with developmental immaturity and poor impulse control significantly increases accident risk and injury severity. The data suggests that substance screening and counseling regarding driving safety should be integrated into routine adolescent and young adult health visits, particularly given that cannabis use may compound already risky developmental driving behaviors. Clinicians caring for this age group should assess both substance use and driving habits, educating patients and parents about the compounding risks of impaired operation of vehicles. The practical takeaway is that while cannabis may not be the primary driver safety concern in youth, providers should include brief interventions about driving safety and substance use consequences as part of preventive care for adolescents and young adults.
“What we’re seeing in clinical practice is that adolescents who use cannabis show measurably impaired judgment in high-stakes situations like driving, and parents need to understand this isn’t about moral failure—it’s about neurobiology, since the prefrontal cortex doesn’t fully mature until the mid-20s. The conversation I have with families is straightforward: cannabis use during these critical developmental years correlates with both risky driving behaviors and longer-term cognitive outcomes, so prevention during adolescence isn’t just about safety, it’s about protecting brain development.”
? While this survey documents parental observations of aggressive driving in adolescents and young adults, the minimal reported marijuana use (2%) limits direct conclusions about cannabis-impaired driving in this population. Parents may underestimate or lack awareness of their children’s actual cannabis use, and observed aggressive driving behaviors likely reflect multiple developmental, social, and environmental factors beyond substance use alone. However, the high prevalence of reported speeding and tailgating underscores that even without confirmed drug involvement, teen and young adult driving poses significant safety risks. Clinicians should recognize that substance use screening during preventive visits remains important for this age group, particularly given evolving cannabis availability and potency, while also addressing the broader context of driving safety through education about attention, risk perception, and impulsivity. A comprehensive approach to adolescent safety should integrate substance use counseling with practical discussions about driving behaviors, peer pressure, and decision-making—regardless of current use prevalence
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