The relationship between marijuana use and mental health disorders, particularly schizophrenia, has been brought into sharp focus by Dr. Kristen Robinson-Barrett, a consultant psychiatrist and director of treatment services at Jamaica’s National Council on Drug Abuse (NCDA). According to Dr. Robinson-Barrett, marijuana can activate an individual’s genetic predisposition to schizophrenia, a condition that, once triggered, cannot be reversed. This revelation adds a sobering layer to the viral comment by Jamaican dancehall artist Pablo YG: “Yuh see weh yuh did do, cyaa rub out” (You see what you did, it can’t be undone).