High Potency Marijuana "Strongly Linked" to Psychosis

It is the latest in a long line of evidence that marijuana is not an innocent relaxation drug. “Smoking high-potency cannabis, used daily, has been linked to diagnosis of conditions like schizophrenia, paranoia and other psychosis disorders, new findings say. About 50 percent of new cases of psychosis disorders diagnosed in Amsterdam were linked to use of high-potency cannabis, according to a study published Tuesday in The Lancet.