Digit Ratio
The length of the 2nd and 4th digit of the left and right hands was measured directly from the hand using vernier callipers measuring to mm. For men, we measured the 2nd and 4th digits from hands twice. Thank you for visiting nature. You are using a browser version with limited support for CSS. Second
The ratio of the lengths of the 2nd and 4th fingers (2D:4D) is a putative marker for prenatal gonadal hormone signaling and has been linked to human sexual orientation. Although 2D:4D is consistently found to be lower in males than females, the. Your new experience awaits. Try the new design now and help us make it even better. The ratio of 2nd to 4th digit length and male homosexuality.
A feature article in Science magazine says that the ratio between the lengths of your 2nd and 4th fingers can be used to predict your sexual orientation, risk of cancer, athletic abilities, and. Official websites use. Share sensitive information only on official, secure websites. 
Sexual orientation is associated with 2D
Combinations of key words in the following groupings were used: (a) 2D:4D, digit ratio, finger ratio; (b) sexual orientation, sexual preference, heterosexual, homosexual, gay, lesbian, straight. Second, the ancestry method was used in which references were retrieved from articles obtained using the principal search method (Phares & Compas, ). Official websites use. Share sensitive information only on official, secure websites.
2nd to 4th finger length ratio ">Sexual orientation and the 2nd to 4th finger length ratio
The ratio of the lengths of the 2nd and 4th fingers (2D:4D) is a putative marker for prenatal gonadal hormone signaling and has been linked to human sexual o. . Digit ratio (2D
Sexual orientation may be influenced by prenatal levels of testosterone and oestrogen. There is evidence that the ratio of the length of 2nd and 4th digits (2D:4D) is negatively related to prenatal testosterone and positively to oestrogen. This study reports that: (1) 2D:4D was lower in a sample of 88 homosexual adult men than in 88 sex- and age-matched controls recruited without regard to. . 
The ratio of 2nd to 4th digit length and male homosexuality
The ratio of index and ring finger lengths (2D:4D) is thought to be a marker of prenatal androgen exposure. In a sample of over 2, participants, men had significantly lower 2D:4D ratios than women (d and for right and left hands, respectively), and these results were consistent across e . .
Are finger ratios actually true?
Sexual orientation may be influenced by prenatal levels of testosterone and oestrogen. There is evidence that the ratio of the length of 2nd and 4th digits (2D:4D) is negatively related to prenatal testosterone and positively to oestrogen. We report that (a) 2D:4D was lower in a sample of 88 homosexual men than in 88 sex- and age-matched controls recruited without regard to sexual orientation. .