Study links smoking to female offspring

April 9, 2007

A study in Britain suggests that parents who are smokers at the time of conception are more likely to have a female child.

The Independent reported on the study, which suggests that having a male baby drops by as much as 50 percent if the parents are both smokers.

The research, done by pediatricians at the Liverpool School of Tropical Medicine, also suggests smoking raises the chances of a miscarriage. Researchers reportedly found that substances contained in cigarettes, such as nicotine, inhibit sperm carrying male chromosomes from fertilizing eggs.

The study looked at 9,000 women who gave birth between 1998 and 2003 at the Liverpool Women's Hospital. The Independent reported that the study also found that women who were exposed to secondhand smoke during pregnancy were also less likely to give birth to male infants.

Copyright 2007 by United Press International

Explore further: More than a few good men: Study finds counterintuitive outcomes of gender imbalance

Related Stories

Recommended for you

How the finch changes its tune

August 3, 2015

Like top musicians, songbirds train from a young age to weed out errors and trim variability from their songs, ultimately becoming consistent and reliable performers. But as with human musicians, even the best are not machines. ...

Cow embryos reveal new type of chromosome chimera

May 27, 2016

I've often wondered what happens between the time an egg is fertilized and the time the ball of cells that it becomes nestles into the uterine lining. It's a period that we know very little about, a black box of developmental ...

Shaving time to test antidotes for nerve agents

February 29, 2016

Imagine you wanted to know how much energy it took to bike up a mountain, but couldn't finish the ride to the peak yourself. So, to get the total energy required, you and a team of friends strap energy meters to your bikes ...

0 comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.