A member asked:

I shake when i yawn. my upper body mostly. it happens every time. what causes it?

2 doctors weighed in across 2 answers
Dr. Richard Reams answered

Specializes in Family Medicine

Normal response: It is common to have some muscle reaction to a good yawn as there is the bodies reaction to the yawn. Our muscles tighten and we shake in response to the trigger of the yawning episode. If it is a very light yawn it might not cause the response to occur but it is common with larger yawns. Hope this helps. It is nothing to worry about.

Answered 3/9/2017

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Need more info: Could be a benign neurological manifestation. If you have no other medical problems I don't see a serious problem but if this condition is recurrent, more than 10 times a month, it would be a good idea to talk it over with your family physician.

Answered 8/10/2016

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