Synthetic marijuana, also known as “spice,” caused psychosis in 10 members of the U.S. Naval Academy, as reported in  These young men had no prior history of psychosis and no prior history of psychiatric illness other than one person previously diagnosed with attention-deficit/hyperactivity disorder.  While most patients’ symptoms resolved within two weeks of hospitalization, some patients continued to have paranoid delusions and depression five months after their last drug use.  To read this article in its entirety, click here.