What is the reason for yawning?

Subject: What is the reason for yawning?

Date: Thu Apr 17 18:54:37 1997
Posted by Jacob Groopman M.D.
Grade level: teacher/prof
School: No school entered.
City: No city entered. State/Province: New York
Country: No country entered.
Area of science: Medicine
ID: 861321277.Me

Message:

As a lung specialist, I don't believe the routine explanations because we do not
see patients with either hypoxia or carbon dioxide retention yawning nor is
atelectasis associated with yawning. I do know that pathological yawning has
been seen with brain tumors.

Re: What is the reason for yawning?

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