Yawning: Symptoms & Signs

  • Medical Author:
    Melissa Conrad Stöppler, MD

    Melissa Conrad Stöppler, MD, is a U.S. board-certified Anatomic Pathologist with subspecialty training in the fields of Experimental and Molecular Pathology. Dr. Stöppler's educational background includes a BA with Highest Distinction from the University of Virginia and an MD from the University of North Carolina. She completed residency training in Anatomic Pathology at Georgetown University followed by subspecialty fellowship training in molecular diagnostics and experimental pathology.

Medically Reviewed on 9/5/2017

Yawning is the involuntary opening of the mouth while taking in a long breath of air. Yawning is associated with sleepiness or drowsiness. Almost anything that causes drowsiness, ranging from tiredness to certain medications, can lead to yawning. Conditions like sleep apnea and restless legs syndrome can cause yawning due to daytime sleepiness. Excessive yawning is yawning that occurs beyond the amount expected even for someone who is sleepy. A vasovagal reaction is a process in the body that can trigger yawning. It can be caused by a heart attack or aortic dissection.

REFERENCE:

Kasper, D.L., et al., eds. Harrison's Principles of Internal Medicine, 19th Ed. United States: McGraw-Hill Education, 2015.

Medically Reviewed by a Doctor on 9/5/2017

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