"Their results revealed that women with lower 2D:4D are more likely to be lesbian. Meanwhile, men with higher 2D:4D are more likely to be gay. 'Bisexual women are more similar to heterosexual women in digit ratios, but there may be further nuance,' the researchers explained."
"Previous research has shown that the length of your fingers is determined during your early development in the womb, and is linked to testosterone levels. '2D:4D is consistently lower in males and converging evidence links prenatal androgens to its development,' the researchers explained in their study, published in Frontiers in Psychology."
"To get to the bottom of it, the researchers conducted an updated meta-analysis comprising 51 studies including 227,648 participants. The results revealed clear differences between heterosexual and homosexual men and women. In men, homosexual participants had a higher 2D:4D ratio than heterosexual participants."
Researchers from Memorial University of Newfoundland and Labrador conducted a meta-analysis of 51 studies involving 227,648 participants to examine the relationship between the 2D:4D ratio (the relative length of index to ring fingers) and sexual orientation. Results revealed that women with lower 2D:4D ratios are more likely to be lesbian, while men with higher 2D:4D ratios are more likely to be gay. Finger length is determined during prenatal development and linked to testosterone levels. Bisexual women showed patterns intermediate between heterosexual and homosexual women. The findings suggest prenatal androgens influence both finger development and sexual orientation.
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