Thursday, February 16, 2012
GAY FACE DECODER?
It turns out hand size may tell us something about men after-all. Or at least the size of our fingers.
The ratio between the index finger and the ring finger, often called the 2D:4D ratio, seems to provide a tell-tale indication of the precise cocktail of developmental hormones present in the womb. Hormones, in addition to genes, affect the growth of hands and certain facial features. Recent research indicates that boys with a low ratio between digits, with an index finger shorter than their ring finger, experienced higher levels of testosterone in the womb, while a high ratio indicates a reduced presence of in utero testosterone. The lower the ratio the more "robust" (i.e. "masculine") the boy's face.
While this seems to provide the perfect explanation of "gay face" (low levels of in utero testosterone), other research suggests the opposite. An unusually high level of in utero testosterone (and a low 2D:4D ratio) has been linked to both homosexuality and left-handedness. I, for example, am both. Other studies suggest in utero testosterone levels also influence penis size, with more testosterone producing larger penises.
So which is it Science? Low testosterone and gay face or more testosterone and homos?