why is yawning accompanied by a sound similar to white noise, or blocking out all sound altogether? 513 viewsJanuary 3, 2024 Question88.44K 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. Register or Login
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