How do you know if your child is acting like a normal teenager or if you’re seeing cannabis use? Here are ten true-or-false statements covering the most likely tip-offs that your teen is using marijuana.
TRUE or FALSE?
9. My teen is saying some strange things about his phone being bugged; this sudden paranoia can indicate marijuana use.
TRUE – Among other things, marijuana can cause psychosis, paranoia, schizophrenia, and suicidal tendencies and thoughts. If you notice any such behavior, investigate it further (or get immediate medical attention if suicidal intent is expressed) because it may be caused by marijuana use.
 Thomas, Huw. “A Community Survey of Adverse Effects of Cannabis Use.” Science Direct, vol. 42, no. 3, Nov. 1996, pp. 201-207., DOI: https://doi.org/10.1016/S0376-8716(96)01277-X.
 Andreasson, Sven, et al. “CANNABIS AND SCHIZOPHRENIA A Longitudinal Study of Swedish Conscripts,” vol. 330, no. 8574, 26 Dec. 1987, pp. 1483-1486.,DOI: https://doi.org/10.1016/S0140-6736(87)92620-1.
 Price, Ceri, et al. “Cannabis and suicide: longitudinal study.” The British Journal of Psychiatry: the Journal of Mental Science, vol. 195,6 (2009): 492-7. DOI: 10.1192/bjp.bp.109.065227.