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Smart men may produce better sperm

December 8, 2008 1:47:25 PM PST
According to a study by the Institute of Medicine, smart men may actually produce better sperm.After ruling out factors like age and lifestyle, researchers found a link between higher intelligence and all three measures of sperm health: number, density and mobility.

The link was not that strong, but researchers say the results support the importance of the "fitness factor idea", which suggests that genes work together to make certain individuals fitter, healthier and smarter.

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