Muscle contraction: When you yawn, the muscles in your throat contract, and cause your throat to close a bit. When your airway constricts, air is forced up past your vocal cords and out of your mouth. It sounds like a burp. You can't treat it, other than practicing focused muscle relaxation in your throat, which would be difficult.
Answered 12/6/2018
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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