Appliance of Science: Why do we burp?

Everybody burps, and in some cultures it is even considered polite to do so after a meal; it is seen as a sign that you have enjoyed your food. But why do we burp? Dr Naomi Lavelle has the answer.

Appliance of Science: Why do we burp?

Everybody burps, and in some cultures it is even considered polite to do so after a meal; it is seen as a sign that you have enjoyed your food.But why do we burp, do other animals do it and what would happen if we didn’t? Dr Naomi Lavelle explains.

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