CANNABIS USE

This study tested a smartphone app called TECH designed to help court-involved teens reduce or stop using marijuana. The app is a private online community where teens can support each other anonymously. Researchers enrolled 60 teens aged 14-18 who had used marijuana in the past y…

This study tested whether N-acetylcysteine (NAC), an over-the-counter supplement, can help people who use both tobacco and cannabis quit both substances. Fifty-nine regular smokers who also used cannabis took either NAC or a placebo for 8 weeks. Researchers tracked how often they…

This small pilot study tested a culturally adapted group therapy called Emotional Awareness and Expression Therapy (EAET) in 6 Israeli adults with chronic musculoskeletal pain who also use medical cannabis. The goal was to see if the therapy could reduce pain and improve emotiona…

This study looked at a community-based program in Norway that helps people stop using cannabis. The program combines cognitive therapy and education over about 8 weeks. 102 people took part, and researchers measured changes in cannabis use, mental distress, and well-being right a…

This observational study looked at how legal cannabis use changes alcohol drinking habits, gut bacteria, and brain function in people who regularly use both alcohol and cannabis. 77 heavy drinkers who also smoke cannabis took part, providing blood and stool samples and completing…

This study looked at how two hormones that rise during pregnancy—estradiol and cortisol—affect the way the body breaks down THC, the main active ingredient in cannabis. Fourteen healthy women of childbearing age took part. Researchers measured THC levels in the blood after taking…

This completed study looked at how cannabis affects driving by using a driving simulator. Researchers compared the driving performance of 207 adults who use cannabis daily, occasionally, or not at all. The goal was to better understand different levels of impairment and improve r…

This completed study from the University of Hong Kong looked at 110 cannabis users aged 16-60 to see how their thinking skills change over time and if genes play a role. Participants took memory and thinking tests and gave blood for genetic analysis. The goal is to understand lon…

This study looked at 40 people who used cannabis within a month before surgery. Researchers used a bedside ultrasound to measure stomach contents and volume, checking if cannabis use leads to delayed stomach emptying. The goal was to better understand how cannabis might affect su…

This study looked at how cannabis affects memory in people who use it regularly. 121 participants inhaled either a low or high dose of cannabis, or a placebo, and then took a series of memory tests. The goal was to see if cannabis makes it harder to remember things like words, pi…

This study looked at how drinking alcohol and using high-THC cannabis concentrates together affects people. 146 heavy drinkers who also use cannabis regularly took part. Researchers measured things like blood alcohol level, heart rate, and how impaired they felt, depending on whe…