Further support for the hypothesis that parental hormone levels around the time of conception are associated with human sex ratios at birth
James, W.H.
Journal of Biosocial Science 40(6): 855-861
2008
ISSN/ISBN: 1469-7599 PMID: 18471338 DOI: 10.1017/s0021932008002794Document Number: 201119
During the past year, data have been published on the offspring sex ratios of people diagnosed with toxoplasmosis, hepatitis B, and pre- and post-menopausal breast cancer. It is shown here how these offspring sex ratios constitute further support for the hypothesis that mammalian (including human) parental hormone concentrations around the time of conception partially control the sexes of the resulting infants. If this interpretation were correct, then hormonal treatments might be considered for some or all of these conditions. It is intended that anyone who has read the present note and my two previous papers (James, 1996, 2004) should be aware of all the data relating to the hypothesis.