If one goes on any search engine looking for study results related to marijuana or alcohol and depression or anxiety, one will immediately see that most of the evidence tells a cautionary tale.
Many studies suggest that regular use of either marijuana or alcohol is associated with an increased risk for a variety of mental health problems, anxiety and depression among them. Increasing data suggests that regular marijuana use in adolescence may also be a risk factor for developing very serious psychotic disorders, especially schizophrenia.
Read the article at CNN Health
Learn more about Dr. Charles Raison at http://cals.arizona.edu/fcs/faculty/Charles_Raison