> ... between 1999 and 2010, states that permitted medical marijuana had an average of almost 25 percent fewer opioid overdose deaths each year than states wher

> ... between 1999 and 2010, states that permitted medical marijuana had an average of almost 25 percent fewer opioid overdose deaths each year than states where cannabis remained illegal. Source: https://www.scientificamerican.com/article/could-medical-cannabis-break-the-painkiller-epidemic/ https://www.scientificamerican.com/article/could-medical-can...