Ring Finger - Scientific Study

Scientific Study

The ratio between index and ring finger is believed to be linked to exposure to testosterone in the womb. On average, men tend to have longer ring fingers and women longer index fingers. The higher the testosterone, the greater the length of the ring finger and the more "masculine" the resulting child – whether male or female. The longest ring finger is known as the "Casanova pattern".

In a study of stock traders, Cambridge University researchers found that the most successful had a relatively long ring finger. According to this study, the finger-length ratio was boosted by higher levels of testosterone in the womb during a crucial phase of gestation. Traders with long ring fingers made up to 11 times the earnings of their counterparts, the study found.

Scientists at the University of California, Berkeley found the difference in the length between women's ring fingers and index fingers tend to be greater for lesbians than straight women. The same study also found that a greater difference in length of men's ring fingers and index fingers for gay men with several older brothers as compared to straight men.

Scientists at the University of Bath found that children who had longer ring fingers are better with numbers-based subjects such as mathematics and physics, which are traditionally male favorites.

Canadian researchers from the University of Alberta have found a correlation between length of the ring finger and levels of physical aggression.