Neil Halelamien writes "Psychologists at the University of Bath have found that male researchers and programmers tend to have higher levels of estrogen, a hormone which promotes development of the right side of the brain (responsible for spatial and analytical skills). Increased estrogen was also linked to having longer index fingers and a decreased likelihood of having children. Men teaching mathematics and physics tended to have unusually long index fingers, while women in the social sciences tended to have more testosterone. The psychologists also found that male and female students with a smaller difference between their index and ring finger lengths tended to do better on their Java programming exams. The research leaves open the question of why women (who typically have more estrogen than men) aren't more prevalent in the science and technology fields."
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