Yawning is involuntarily opening the mouth and taking a long, deep breath of air. This is most often done when you are tired or sleepy. Excessive yawning that happens more often than expected, even if drowsiness or weariness is present is considered excessive yawning.
Alternative Names
Excessive yawning
Causes
Causes may include:
Drowsiness or weariness
Disorders associated with excessive daytime sleepiness
Teive HAG, Munhoz RP, Camargo CHF, Walusinski O. Yawning in neurology: a review. Arq Neuropsiquiatr. 2018;76(7):473-480. PMID: 30066799 pubmed.ncbi.nlm.nih.gov/30066799/.
Review Date:
2/2/2023
Reviewed By:
Linda J. Vorvick, MD, Clinical Professor, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington, Seattle, WA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.