Why do we yawn ?__________
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One 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.
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ᴏɴᴇ ɪs ᴛʜᴀᴛ ᴡʜᴇɴ ᴡᴇ ᴀʀᴇ ʙᴏʀᴇᴅ ᴏʀ ᴛɪʀᴇᴅ,ᴡᴇ ᴊᴜsᴛ ᴅᴏɴ'ᴛ ʙʀᴇᴀᴛʜ ᴀs ᴅᴇᴇᴘʟʏ ᴀs ᴡᴇ ᴅᴏ.ᴀs ᴛʜɪs ᴛʜᴇᴏʀʏ ɢᴏᴇs,ᴏᴜʀ ʙᴏᴅɪᴇs ᴛᴀᴋᴇ ɪɴ ʟᴇss ᴏxʏɢᴇɴ ʙᴇᴄᴀᴜsᴇ ᴏᴜʀ ʙʀᴇᴀᴛʜɪɴɢ ʜᴀs sʟᴏᴡᴇᴅ.ᴛʜᴇʀᴇғᴏʀᴇ ʏᴀᴡɴɪɴɢ ʜᴇʟᴘs ᴜs ʙʀɪɴɢ ᴍᴏʀᴇ ᴏxʏɢᴇɴ ɪɴᴛᴏ ᴛʜᴇ ʙʟᴏᴏᴅ ᴀɴᴅ ᴍᴏᴠᴇ ᴍᴏʀᴇ ᴄᴀʀʙᴏɴ ᴅɪᴏxɪᴅᴇ ᴏᴜᴛ ᴏғ ᴛʜᴇ ʙʟᴏᴏᴅ
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