Cannabis

How long is a person’s ability to safely drive impaired after consuming cannabis? A meta-analysis suggests intoxication spans anywhere from three to 10 hours, raising questions over some roadside tests detecting traces of THC days after consumption.

New research suggests cannabis use can be linked to higher rates of "rebound headaches" in migraine sufferers. The research is observational and retrospective, but it is yet another finding questioning how helpful cannabis is for chronic migraine patients.

Canadian researchers are reporting the results of a clinical trial testing the efficacy of CBD in helping cocaine addicts kick the habit. The results suggest CBD does not reduce cocaine cravings or help prevent relapse into addiction.

A team of scientists has demonstrated a novel microencapsulation method designed to improve the absorption and bioavailability of CBD. Animal tests suggest the new method increases peak concentrations of CBD in the brain by 300% compared to CBD oil.

A study into the effects of cannabis on driving in a real-world context has found CBD alone does not impair driving ability. The landmark finding promises to be invaluable in guiding road safety regulations as cannabis laws shift across the globe.

Some people find their symptoms of OCD dramatically drop after smoking cannabis, according to a new study. The improvements may only be beneficial in the short-term however, and more research is needed to understand the long-term effect of cannabis use on OCD.

A new study, led by researchers from University College London, is offering some of the first robust evidence showing how CBD, a key compound in cannabis, increases cerebral blood flow in memory processing regions of the brain such as the hippocampus.

Positive results from the world’s first clinical trial testing the potential for cannabidiol (CBD) to treat cannabis addiction suggest daily use of medical-grade CBD is both safe and effective at reducing problematic cannabis consumption.

New research is offering the first clinical trial insights into microdosing THC to treat chronic pain. The results of the small trial suggest tiny doses of THC may confer clinically apparent reductions in pain without inducing psychoactive effects.

A study has found smoking high-THC marijuana or concentrates does not result in greater levels of intoxication. The research adds weight to a body of evidence suggesting proposed roadside THC tests may not correlate with driving impairment.

With legal recreational cannabis use spreading across North America there is a debate over what the minimum age for consumption should be. A new study from Canadian researchers suggests 19 is the optimal age to set for recreational use of the drug.

Results from the world's first placebo-controlled clinical trial testing the efficacy of medicinal cannabis for chronic insomnia reveal statistically significant, and dose responsive, improvements to sleep quality using a novel CBD/THC formulation.