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A member asked:

What causes excessive yawning? my son yawns entirely too much.

A doctor has provided 1 answer
Dr. Edward Kuhnley answered

Specializes in Child Psychiatry

Fatigue & other: 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, or a disorder associated with excessive daytime sleepiness. Consult physician to rule out heart problem.

Answered 11/12/2016

5.3k views

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Related Questions

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Ive always had a small bump on sides of upper nose but lately one side looks bigger. Could constantly taking deep breaths(due to back issue) & excessive yawning daily cause that or would those repetitive actions not change bone or cartilage in nose?

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Six year old son complains that he is never able to yawn even when he has the urge to.

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My 8 year old son is often taking deep breaths and/or yawning could this be sign of asthma will make a doc appt after weekend or am i over worrying?

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A member asked:

My three year old son had a sugary donut and then proceeded to take a hot bath afterwards. After the donut he was yawning A LOT, and very sleepy. He is warm, and looks out of it. Nurse said to keep an eye on him. Could this be a sugar crash?

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A member asked:

I've been excessively yawning for the past six or seven days? What could be causing this? How can I stop myself from yawning so much?

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