For a better understanding of the existing relations between hormonal and cerebral symptoms, a consistent cross-consultation is needed between urologists, sexologists, endocrinologists, and dermatologists on one end, and psychiatrists, neurologists and researchers on the other hand… A very interesting and promising development is the identification of genetically influenced metabotypes, so called GIMS, that represent the genetic basis of chemical individuality, which gave new biological insights. With the help of these GIMS it was possible to prove a consistent genetic association between greater 5α-reductase activity and the risk of male-pattern hair loss.
—The Post-Finasteride Syndrome: Possible Etiological Mechanisms and Symptoms: International Journal of Impotence Research, September 11, 2023