Can you influence the sex of your baby by eating cereal?

This article by Monique Robinson is interesting — not because it tells you anything particularly useful about what you can do before conception to influence the sex of your child, but because it provides a rundown of the many random correlations studies have linked to fetal sex determination over the years. From eating cereal to being a billionaire's kid, it's an intriguing look at how easy it is to find patterns, even when those patterns may (or may not) be totally meaningless. Read the rest

Science, sex, and your hands

Here's an interesting fact about sexual dimorphism: On average, if you were born a male, your hands are a little bit different from those of someone who was born a female. Most men have a pointer finger that is a little bit shorter than their ring finger. Most women have a pointer finger that's about the same length as their ring finger, if not a little longer.

People have noted this differences between the sexes for centuries. But what's it mean? Truth is, we really aren't sure yet. But it is correlated to a lot of awfully interesting things. In fact, some scientists think "the finger thing" (as I like to call it) is a hallmark of prenatal hormone exposure. Because of that, in the scientific literature, you'll find lots of examples of studies that try to find a connection between the finger thing and seemingly disparate traits, such as sexual orientation and gender expression.

We talked about the finger thing on a recent episode of the Sex is Fun podcast—what it's all about, what fingers could be telling us about people, and why it's maybe all just a bunch of hooey. Take a listen!

Also, for the record: My right hand has lady fingers. My left hand does not. How about you?

Sex is Fun

Image: Hand, a Creative Commons Attribution Share-Alike (2.0) image from teleyinex's photostream

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