Based on genetic information from more than 1 million people of European ancestry, results suggest the neurochemicals glutamate and GABA, but not dopamine or serotonin, contribute to risk tolerance.
As legalization continues, more patients are swapping their prescription pills for medicinal cannabis.
Impairment can last for hours after THC has left the body, meaning that a simple blood test may not accurately portray if a person is fit to drive. The Otorize app uses digitalized, scientifically sound, cognitive tests to judge a person's ability to drive or operate heavy equipment.
The study focused adults in Michigan who were seeking medical cannabis recertification or a new certification for chronic pain in 2014 and 2015.
Whether changes can be reversed or are passed on to children is still unknown
The authors of the paper point out that regulation in a legalized market could help control these risks and improve consumer safety.
A new study conducted on laboratory animals shows that exposure to cannabis and stress during adolescence may lead to long-term anxiety disorders characterized by the presence of pathological fear.
The study, which was conducted in mice, specifically found that CBD caused an increase in pressure inside the eye of 18 percent for at least four hours after use.