Yawning involves opening the mouth involuntarily while taking a long, deep breath of air. This is usually done as a result of drowsiness or weariness. Excessive yawning is yawning that happens more often than would be expected, even if drowsiness or weariness is present.
Yawning is a normal response to fatigue and drowsiness, but excessive yawning can be caused by a vasovagal reaction. This reaction is caused by the action of a nerve, called the vagus nerve, on the blood vessels. It may indicate a heart problem. Normal yawning may happen when someone else yawns.
Follow the treatment for the underlying cause.
The health care provider will get your medical history and do a physical examination. Medical history questions documenting excessive yawning in detail may include the following:
Diagnostic tests that may be performed include sleep studies.
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Reviewer Info: Benjamin W. Van Voorhees, MD, MPH, Assistant Professor of Medicine and Pediatrics, The University of Chicago, Chicago, IL. Review provided by VeriMed Healthcare Network.; ADAM Health Illustrated Encyclopedia, 01/18/2007 |