Pressure adjustments affect our bodies much more than we would recognize. The feeling of popping takes place when air moves with the Eustachian tube to equalize pressure on either aspect from the eardrum. Within a direct dilemma: for what explanation; from what cause or motive; for what reason. Cf. wherefore https://marcojqtwy.buyoutblog.com/36294431/pressure-imbalances-for-dummies