Researchers at the Colorado School of Public Health (CSPH) are studying how cannabis use affects driving performance. Using a "video game-like" simulator, they measure how people drive before and ...

Teens who use cannabis may face a substantially greater risk of developing serious mental health conditions, including psychotic and bipolar disorders, according to a study of more than 463,000 ...

Adolescent cannabis users show slower gains in thinking and memory skills as they age. The study published in Neuropsychopharmacology suggested that the teen years are a critical time for brain ...

Marijuana use among teenagers is entering a new phase—one shaped not only by changing laws but also by shifting perceptions of risk. As legalization expands across the United States, researchers and ...

Opponents of cannabis have long claimed that legalizing it for adults would lead to an increase in teen use. They were wrong, according to a new federal report. Sign up Cannabis use among teenagers ...

As marijuana legalization expands across the U.S., it is outpacing research on the impact of cannabis use behind the wheel. Researchers at the Virginia Tech Transportation Institute (VTTI) recently ...

Cannabis use in adolescence was associated with a significantly greater likelihood of developing serious psychiatric disorders — particularly psychosis and bipolar disorder — in early adulthood ...

AUSTIN, Texas, Feb. 23, 2026 /PRNewswire/ -- As Texas examines the regulation and enforcement of cannabis, advocates are raising attention about a growing and often under-reported threat of impaired ...

Teen cannabis use in Northern California increased following the legalization of adult recreational cannabis and later declined during the COVID-19 pandemic, according to new research from Kaiser ...

In a recent blog post, I explored data proving how cannabis users’ sense that they were ready to drive safely often occurred sooner than driving impairment waned (see “Self-Perception Doesn’t Predict ...

Cannabis use among teenagers is linked to delayed cognitive development and worse memory over time, the largest US study to date showed. In an analysis of over 11,000 teenagers, cannabis use was ...