explain why its hard to keep your mouth closed when you yawn. 639 viewsJanuary 3, 2024 Question91.00K March 22, 2020 0 Comments explain why its hard to keep your mouth closed when you yawn. In: Biology 1 Answer ActiveNewestOldest Anonymous Posted March 22, 2020 0 Comments I think it’s because your brain is trying to get oxygen to your brain so it forces your mouth to open as wide as possible as to inhale as much air as you can. You are viewing 1 out of 1 answers, click here to view all answers. Register or Login
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