[Note: this post originally appeared on April 18, 2009 on Rational Moms.]

I love a quick, informative slideshow and this one doesn’t disappoint. Scientific American investigates the science behind some of the common pregnancy myths and wives’ tales.

For example, is heartburn a sign that your baby will have hair? Do overweight mothers give birth to overweight babies? Do pregnant women eat more when having a boy?

(Answers: Most likely, yes, and yes. But there’s more so follow the link!)

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