No significant causal links between cannabis legalization and substance-use disorders were found in this study on twins.
February 1, 2023
In reviewing data about twins, researchers found that cannabis use increased for those who lived in a recreational cannabis state versus one that has not yet legalized.
August 25, 2022
A study published in the journal Drug and Alcohol Dependence explored the association between cannabis use and physical health among 308 sets of twins.
June 13, 2022