Yes. pressure change: It is the function of eustachian tube that goes from throat to middle ear to equalize the pressure on either side of the ear drum. This is why we yawn or chew gum before landing in an airplane. If you have a cold or allergy, this could affect the et function and increase the popping when you activate the tensor veli palatini muscle that controls the et opening.
Answered 2/2/2015
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