2 doctors weighed in:

Does yawning mean someone may be low on oxygen? I.E. They try to get more oxygen with a deep breath perhaps?

2 doctors weighed in
Dr. Michael DePietro
Internal Medicine - Pulmonary Critical Care
1 doctor agrees

In brief: No

This explanation for yawning is a common urban legend but there is little to support it.
In fact the reason we yawn is not entirely clear.

In brief: No

This explanation for yawning is a common urban legend but there is little to support it.
In fact the reason we yawn is not entirely clear.
Dr. Michael DePietro
Dr. Michael DePietro
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