Men: Hold up your right hand. Are your index and ring fingers mismatched? Congratulations, you're more likely than men with mismatched digits to have a long peniz.
A smaller ratio between the second and fourth fingers is linked to a longer stretched peniz size, researchers report today (July 4) in the Asian Journal of Andrology. The findings go beyond providing a new finger ratio-based pick-up line for men in bars, however; researchers say that a quick look at a man's fingers could reveal his exposure to male hormones in the womb, providing a hint about his risk for hormone-driven diseases like prostate cancer.