Does Marijuana Cause Schizophrenia?

On Sep 1, 2021

As legalization spreads throughout the developed world, the true health effects of cannabis are more important to understand than ever before. This video investigates a link between marijuana and the mental health disorder schizophrenia.

This video was made by McMaster Students Matthew Yanovski, Mohamed Gareiw, Syed Fowad Daud and Ihtisham Ahmad, in collaboration with the McMaster Demystifying Medicine Platform.

Special thanks to our guest narrators:
– Danial Qureshi
– Adhithya Krishnan

References:

Andréasson, S., Allebeck, P., Engström, A., & Rydberg, U. (1987). Cannabis and schizophrenia. A longitudinal study of Swedish conscripts. Lancet (London, England), 2(8574), 1483–1486. https://doi.org/10.1016/s0140-6736(87)92620-1

Andréasson, S., Allebeck, P., & Rydberg, U. (1989). Schizophrenia in users and nonusers of cannabis. Acta Psychiatrica Scandinavica, 79(5), 505–510. https://doi.org/10.1111/j.1600-0447.1989.tb10296.x

Radhakrishnan, R., Wilkinson, S. T., & D’Souza, D. C. (2014). Gone to Pot – A Review of the Association between Cannabis and Psychosis. Frontiers in psychiatry, 5, 54. https://doi.org/10.3389/fpsyt.2014.00054

van Os, J., Bak, M., Hanssen, M., Bijl, R. V., de Graaf, R., & Verdoux, H. (2002). Cannabis use and psychosis: a longitudinal population-based study. American journal of epidemiology, 156(4), 319–327. https://doi.org/10.1093/aje/kwf043

Siff, S. (2014).The illegalization of marijuana: A brief history. Origins, 7(8). https://origins.osu.edu/article/illegalization-marijuana-brief-history/page/0/1

Clip of Ronald Reagan:
https://www.youtube.com/watch?v=VxHBx6H-xFo

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