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Published online 4 August 2004 | Nature | doi:10.1038/news040802-11
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Subconscious may bias sex of babies
Mothers who expect lengthy lives tend to produce sons.
Mothers who think they have longer to live are more likely to give birth to boys than girls, a survey of British women shows. The finding backs up the long-held theory that women may unwittingly be able to influence the sex of their unborn child.
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