Why do mammalian males have scrota?

My hypothesis is that the scrotum, which in mammals, is often exposed, relatively hairless, and with thin skin and little subcutaneous tissue, may have evolved for perhaps a different reason than simply to provide a lower temperature for spermatogenesis. Consider that humans produce about 25,000 sperm every minute. Why so many?…

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Biology and Psychiatry: Some Missing Pieces in the Puzzle

Presented at the Academic Seminar, Jewish General Hospital, Montreal, Quebec, on 1982-3-26, during my first year of residency training in psychiatry. Download a pdf of the article Henry Olders, M.D. Jewish General Hospital Institute of Community & Family Psychiatry A. Introduction Since starting my explorations in psychiatry last summer, I…

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