Definition

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.

Alternative Names

Excessive yawning

Considerations

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.

Common Causes

• Drowsiness or weariness
• Disorders associated with excessive daytime sleepiness
• Vasovagal reaction
  • Heart attack
  • Aortic dissection

Home Care

Follow the treatment for the underlying cause.

Call your health care provider if

• You experience unexplained and excessive yawning.
• The yawning is associated with excessive daytime sleepiness.

What to expect at your health care provider's office

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:

• When did the excessive yawning begin?
• How many yawns per hour or day?
• Is the yawning the same throughout the day?
• Is it worse in the morning, after lunch, or during exercise?
• Is it worse in certain areas or certain rooms?
• Does yawning interfere with normal activities?
• Is the increased yawning related to amount of sleep you get?
• Is it related to use of medications?
• Is it related to activity level?
• Is it related to boredom?
• What helps it?
• Does rest help?
• Does breathing deeply help?
• What other symptoms are also present?
• What medications are you taking?

Diagnostic tests that may be performed include sleep studies.