A new study finds that boys with ring fingers longer than their index fingers run faster. This phenomenon was explained by exposure to testosterone in the womb, during pregnancy.
Men (and only men) with longer ring fingers were also more likely to be physically aggressive.
Kids with longer ring fingers are likely to have higher SAT maths scores than literacy or verbal scores while children with longer index fingers are better in reading and writing, or verbal, rather than maths tests.
People with longer ring fingers (than index fingers) are also at a higher risk of osteoarthritis.
Other research can also show a link between behaviour and personality traits and the shape of a hand.
Such findings reinforce certain beliefs that large parts of our personalities and traits are formed when we are in the womb.
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