Yawning in the womb may be the unborn baby showing distress, according to new research. Fetuses can - and do - yawn in the womb, where all oxygen is provided by the placenta, scientists say. Now, a ...

Medical imaging’s come a long way in the past few decades—but it’s now so good that doctors can use it to tell the difference between a baby opening its mouth and it yawning. A team of researchers ...

It’s ancient, unstoppable and strangely contagious. Here’s what science now knows about the humble yawn, and why evolution ...

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