Polygenic Risk Scores for Schizophrenia and Bipolar Disorder Associate with Addiction Reginsson, G. W., Ingason, A., Euesden, J., Bjornsdottir, G., Olafsson, S., Sigurdsson, E., Oskarsson, H., Tyrfingsson, T., Runarsdottir, V., Hansdottir, I., Steinberg, S., Stefansson, H., Gudbjartsson, D. F., Thorgeirsson, T. E., & Stefansson, K. (2018). Polygenic risk scores for schizophrenia and bipolar disorder associate with addiction. Addiction Biology, 23(1), 485–492.
A study that shows how genetics play a role in the development of major mental illness and addiction.