Times of stress produce fewer baby boys

by Anonymous on Aug. 09th, 2013

Girls, girls, girls!: Recent studies have shown that more girls than boys are born during times of stress. The skewed gender ratio of births following the huge 2011 Japan earthquake and subsequent tsunami adds further evidence.
Girls, girls, girls!: Recent studies have shown that more girls than boys are born during times of stress. The skewed gender ratio of births following the huge 2011 Japan earthquake and subsequent tsunami adds further evidence.Courtesy Sprengben [why not get a friend]
A new study shows that more girls than boys were born in the months following Japan's massive earthquake in 2011. Normally, natural gender selection is pretty much 50-50, as would be expected. But after the huge 9.0 magnitude earthquake struck off the coast of Japan, Ralph Catalano and his colleagues compared 5 years of hospital records, and found that about 2.2 percent fewer boys were born than during other times. Catalano, professor of public health at the University of California in Berkeley, thinks the reason might be for evolutionary reasons, and that hormones and more chances of miscarriages with male fetuses increase the likelihood of a female being born during times of high stress. It's not the first time the gender imbalance has been noticed. Earlier studies (in which Catalano was also involved) have shown that after the 9/11 attacks, more male fetuses didn't make it to term, and fewer male births followed the stock market crash of 2008. The latest study appeared in a recent issue of the American Journal of Human Biology.

SOURCE
New Scientist story

Your Comments, Thoughts, Questions, Ideas

interested viewer's picture
interested viewer says:

What a crazy thought! Who knew the world had such an impact?!?

posted on Wed, 09/11/2013 - 7:27pm
Ericka 's picture
Ericka says:

it is so so sad causepeople lost there lifes and they lost there schools and homes and the playgrounds cause there was a tonaado and it rect all the stuff and i fell bad for the kids and parents

posted on Fri, 11/01/2013 - 12:26pm
keili m's picture
keili m says:

i would haate to live in a place with to many natural disasters so i love it here.

posted on Wed, 03/26/2014 - 1:18pm

Post new comment

The content of this field is kept private and will not be shown publicly.
  • Allowed HTML tags: <a> <h3> <h4> <em> <i> <strong> <b> <span> <ul> <ol> <li> <blockquote> <object> <embed> <param> <sub> <sup>
  • Lines and paragraphs break automatically.
  • You may embed videos from the following providers vimeo, youtube. Just add the video URL to your textarea in the place where you would like the video to appear, i.e. http://www.youtube.com/watch?v=pw0jmvdh.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Images can be added to this post.

More information about formatting options