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23 November 2012

Foetuses yawn in the womb

The 4D scans of 15 healthy foetuses suggest that yawning is a developmental process which could potentially give doctors another index of a foetus' health.

The 4D scans of 15 healthy foetuses, by Durham and Lancaster Universities, also suggest that yawning is a developmental process which could potentially give doctors another index of a foetus' health.

But the new research clearly distinguished 'yawning' from 'non-yawn mouth opening' based on the duration of mouth opening. The researchers did this by using the 4D video footage to closely examine all events where a mouth stretch occurred in the foetus.

What the study found

 
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