Women whose left index and ring fingers have different lengths are more likely to be lesbians, according to a study.
Scientists measured the fingers of 1
This may be the result of exposure to more testosterone in the womb, researchers from the University of Essex
Scientists also measured the fingers of 14 pairs of male monozygotic twins, one being straight and the other gay, but unable to connect ,
Both men and women were exposed to the "male" hormone testosterone in the womb – but some may be more exposed than others, the researchers said.
Study author Dr. Tuesday Watts of the Psychology Department at Essex University said: "Since identical twins who share 100% of their genes may differ in their sexual orientation, factors other than genetics must account for the differences.
" Research lays It suggests that our sexuality in the womb is determined and depends on the amount of male hormone we are exposed to or the way our individual bodies react to that hormone, with those who are exposed to higher testosterone levels being more bisexual or are gay.
"Because of the link between hormone levels Different finger lengths and looking at one's hands could give an indication of their sexuality."
The results are published in Archives of Sexual Behavior.