The size of a man’s ring finger is a measure of his libido.
The size of a man’s ring finger is a measure of his libido. Researchers have discovered that the greater the male sex hormone, testosterone, a baby is exposed to in the womb, the longer the child’s ring finger, which is packed with sex hormone receptors, is likely to be.
The study found: “Sex hormones affect finger length, and the ratio is fixed before the bone has even developed. This happens during a narrow window of development but it stays fixed throughout life.”