|Yann' ring fingers is longer than index fingers|
Penis Size Linked to Finger Length
“You may have heard the common thought that your foot is as long as the distance between your elbow and your wrist. Or, how about the fact that most people are approximately as tall as the distance from the middle fingertip of one hand to the other, when your hands are held out perpendicular to your body? Chances are you've even heard the theory about penis size and men with big feet. However, have you heard that your penis size is linked to your finger length?
Research led by urologist Dr. Tae Beom Kim focused on the relationship between finger measurement and erect and flaccid penis size. 144 men participated in the study. Dr. Kim and his researchers: Measured the men's index fingers (2D) and their ring fingers (4D), and They also measured their penis while erect and while flaccid.
Interestingly, they found that most men had longer ring fingers (4D) than index fingers (2D). Additionally, those with a lower index finger to ring finger ratio (2D:4D – relatively longer ring finger) were found to have longer erect penises. The researchers noted, “Based on this evidence, we suggest that digit ratio can predict adult penile size, and that the effects of prenatal testosterone may in part explain the differences in adult penile length.” Previous research has found that this 2D:4D ratio is related to the amount of androgens (testosterones) present in a baby's body during the 8th to 19th week of pregnancy. Where women tend to have ring fingers that are approximately the same length of their index fingers, men have longer ring fingers due to the increased amount of testosterone in the womb.
Is There a Connection between Sexual Orientation and the Ratio between Second and Fourth Finger Length?
"The ratio of index and ring finger lengths (2D:4D) is thought to be a marker of prenatal androgen exposure... Heterosexual men had significantly lower (more male typical) 2D:4D ratios than gay men (d = .32 and .31 for right and left hands, respectively), and these results tended to be consistent across ethnic groups... The current findings add to evidence that prenatal hormonal factors may be linked to men's sexual orientation."