Yawning
One theory of why we yawn is that when we are bored or tired, we just don't breathe as deeply as we usually do. As this theory goes, our bodies take in less oxygen because our breathing has slowed. Therefore, yawning helps us bring more oxygen into the blood and move more carbon dioxide out of the blood.
i have heard this...
ReplyDeleteThis made me realize that since I have been on CPAP, I don't yawn. Interesting.
ReplyDeleteIt sounds like yawning is good for us to me.
ReplyDeleteTrue..... but I think some yawns could be from boredom haha!
ReplyDeleteAnd now you made me yawn!
ReplyDeleteI can'r see someone else yawn without yawning myself.....even when I try not to!!!
ReplyDeleteYawning is good for sleep.
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