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Yawning - excessive
Definition:
Yawning involves opening the mouth involuntarily with a prolonged, deep inhalation of air, as from drowsiness or weariness. Alternative Names: Excessive yawning Text Continues Below

Considerations:
Yawning is a normal response to fatigue and drowsiness, but excessive yawning can be caused by a vasovagal reaction and may indicate a heart problem. Normal yawning may be induced when the brain or lungs are not getting enough oxygen (or when someone else yawns). Common Causes:
- Drowsiness or weariness
- Disorders associated with excessive daytime sleepiness
- Vasovagal reaction
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