why is yawning accompanied by a sound similar to white noise, or blocking out all sound altogether? 522 viewsJanuary 3, 2024 Question90.65K July 3, 2020 0 Comments why is yawning accompanied by a sound similar to white noise, or blocking out all sound altogether? In: Biology 1 Answer ActiveNewestOldest Anonymous Posted July 3, 2020 0 Comments Your jaw opens and you breathe in, hence the noise or lack thereof. Your ear canals change shape when your jaw opens all the way. The goal of yawning is for CO2 exchange and possibly brain temperature regulation. You are viewing 1 out of 1 answers, click here to view all answers. Register or Login
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