Just to underscore the arbitrary nature of this blog, I'm now passing on advice on how to choose the sex of your children.
It may be that male embryos are less viable in women who regularly limit food intake, such as skipping breakfast, which is known to depress glucose levels. A low glucose level may be interpreted by the body as indicating poor environmental conditions and low food availability, the researchers said.For all of the yammering about how great the modern world is, our boy birth rate is going down because women's nutrition is poor. Put that in your smoke and pipe it.
In the United States, for instance, the proportion of adults eating breakfast fell from 86 percent to 75 percent between 1965 and 1991. And although women may be eating more overall, a nutrient-poor diet could be less favorable to a male embryo. Glucose levels may also fluctuate in women who are dieting and trying to lose weight prior to pregnancy. In animals, more sons are produced when a mother ranks high in the group or has plentiful food resources.