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Uploaded on Jan 5, 2010
Are men really more daring than women and what has that got to do with the ring finger? The astonishing answer is that the more testosterone a foetus is exposed to in its mothers womb, the longer its ring finger will be relative to the index finger. Testosterone in the mothers womb also has other effects on a persons mental development by promoting or inhibiting the growth of certain regions of the brain - masculine, more masculine, the most masculine...