CANNABIS USE

This study tested whether N-acetylcysteine (NAC), an over-the-counter supplement, can help people who use both tobacco and cannabis cut back or quit. Fifty-nine adults who smoked cigarettes and used cannabis took NAC or a placebo for 12 weeks. Researchers tracked changes in days …

This study tested a smartphone app called TECH designed to help court-involved teens reduce or quit marijuana. Sixty teens aged 14-18 who had used cannabis in the past year and had a smartphone participated. The app provided a private online community where teens could support ea…

This study looked at a community-based program in Norway designed to help people quit cannabis. The program combined cognitive therapy and education over about 8 weeks. Researchers tracked 102 participants and measured changes in cannabis use, mental distress, and well-being righ…

This study looked at how cannabis affects driving ability. Researchers used a driving simulator to compare the performance of 207 adults who use cannabis daily, occasionally, or not recently. The goal was to better understand the different ways cannabis can impair driving.

This study used ultrasound to check the stomach contents of 40 people who use cannabis before they had surgery. The goal was to see if cannabis use delays stomach emptying, which could affect safety during anesthesia. Researchers measured how much food or liquid was still in the …

This study looked at how two hormones that rise during pregnancy—estradiol and cortisol—affect the way the body processes THC, the main psychoactive ingredient in cannabis. Fourteen healthy women of childbearing age took a synthetic THC drug (dronabinol) under controlled conditio…

This study looked at how long-term cannabis use affects thinking, memory, and other brain functions in 110 people aged 16-60 in Hong Kong. Researchers also checked if certain genes make some users more likely to have cognitive problems. The goal is to better understand the risks …

This study looked at how combining alcohol with high-THC cannabis concentrates changes intoxication. 146 heavy drinkers who also use cannabis regularly took part. They drank a set amount of alcohol and used their own cannabis product, then had their heart rate, blood alcohol, and…

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 legal cannabis use changes alcohol drinking habits, gut bacteria, and brain function in 77 adults who regularly use both alcohol and cannabis. Participants tracked their drinking and cravings over a month, gave blood and stool samples, and completed think…