Male Births Drop Mysteriously In Us And Japan

[Ognir]

Male births in the US and Japan have dropped slowly but consistently for the last three decades, report University of Pittsburgh researchers in this week's Environmental Health Perspectives.<blockquote>“The pattern of decline in the ratio of male to female births remains largely unexplained,” said Devra Lee Davis, Ph.D., M.P.H., lead investigator of the study, director of the University of Pittsburgh Cancer Institute’s Center for Environmental Oncology and professor of epidemiology, University of Pittsburgh Graduate School of Public Health. “We know that men who work with some solvents, metals and pesticides father fewer baby boys. We also know that nutritional factors, physical health and chemical exposures of pregnant women affect their ability to have children and the health of their offspring. We suspect that some combination of these factors, along with older age of parents, may account for decreasing male births.”

Dr. Davis explained that environmental factors, such as prenatal exposure to endocrine- disrupting environmental pollutants may impact the SRY gene – a gene on the Y chromosome that determines the sex of a fertilized egg. Other environmental factors that also may affect the viability of a male fetus include the parents’ weight, nutrition and the use of alcohol and drugs.

</blockquote>This might seem less foreboding eery had Children of Men not been released this winter.

Pitt study notes decline in male births in the US and Japan [press release]









http://blog.wired.com/wiredscience/2007/04...births_dro.html

[Phil999]

that's interesting. I'd like to see a world map of male and female births during the last 50 years. I heard from another study that more boys are born during war.

[lovelyk]

Quote:The pattern of decline in the ratio of male to female births remains largely unexplained

Unexplained?
There's always an explanation. nothing happens out of the blue.

[metal-gear-solid]

^So what is the explanation? I don't mind there being more females seeing as to how males can impregnate more than one female in nine months. All I see is that girls are going to have to change their bitchy attitudes in the future for males to pay any attention to them since their will be fewer males.

[ephilution]

Quote:^So what is the explanation? I don't mind there being more females seeing as to how males can impregnate more than one female in nine months. All I see is that girls are going to have to change their bitchy attitudes in the future for males to pay any attention to them since their will be fewer males.

Inoculations, according to Alan Watt, are responsible for reducing fertility in males of... course by design.... As a consequence one should be able to discover a negative correlation between the number of inoculations administered and the sperm count.