advertisement
19 June 2007

Twin may cut fertility

Women with a twin brother may be 25 percent less likely to have children than women with a twin sister, says a new UK study.

0
Women with a twin brother may be 25 percent less likely to have children than women with a twin sister, says a UK study that examined centuries-old Finnish medical records, BBC News reported.

Exposure in the womb to the male hormone testosterone may be an important factor, said Sheffield University researchers. Their study appears in the journal Proceedings of the National Academy of Sciences.

The study also found that females with a twin brother were 15 percent less likely to marry than women with a twin sister, BBC News reported.

The researchers said they analysed data on twins in the 1700s and 1800s because advanced healthcare and modern fertility/conception treatments would skew modern data.

"There is some evidence to support this observation. Exposure to testosterone in the womb in sheep recreates a similar syndrome to a condition called PCOS, which is a known cause of infertility in humans," Dr Laurence Shaw, a fertility expert at the London Bridge Fertility Centre and a spokesman for the British Fertility Society, told BBC News. – (HealthDayNews)

Read more:
Pregnancy Centre
Taller women have twins

June 2007

 
NEXT ON HEALTH24X
advertisement

Read Health24’s Comments Policy

Comment on this story
0 comments
Comments have been closed for this article.

Live healthier

Contraceptives and you »

Scientists create new contraceptive from seaweed Poor long-term birth control training leads to 'accidents'

7 birth control myths you should stop believing

Will the Pill make you gain weight? Can you fall pregnant while breastfeeding? We bust seven common myths about birth control.

Your digestive health »

Causes of digestive disorders 9 habits that could hurt your digestive system

Your tummy rumblings might help diagnose bowel disorder

With the assistance of an 'acoustic belt', doctors can now determine the cause of your tummy troubles.