by Hans Johnson

Babies not only hiccup, swallow, stretch, and suck their thumbs in the womb, they yawn. While there is much disagreement on why we yawn, it is generally thought to be for the obvious reason of getting an extra burst of oxygen.

British researchers are studying 4D scans of pre-birth babies at 24-36 weeks gestation. Opinions are varied as to why they do it. It is certainly not subconscious imitation. We know of course they get their oxygen through the umbilical cord.  Are they exercising their muscles for the day they do yawn in air?

That’s quite the genetic programming, don’t you think?

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