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Asked by tmoss to Jack, Tom, Yalda on 19 Mar 2013.
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anon answered on 19 Mar 2013:
Because you swallow air when you’re drinking & then your body tries to get rid of it by pushing it back up – so you burp. Burps from “the other end” are caused by your food fermenting (breaking down & generating gas) in your guts and it then has to escape through your bottom.
Comments
Yalda commented on :
Tom – how loud can you get your burps?? 😛
Tom commented on :
I used to be able to burp the alphabet (not tried for a long time!). I should get a recorder and check how loud, I reckon about 110 dB (about as loud as a chainsaw).
Yalda commented on :
Lovely… we expect it on YouTube later.