Burping is one of the more obvious external signs of indigestion, and is caused when the body tries to release bubbles of gas from the stomach.

Did you know...?

• Burping is the first thing a baby actually "learns" to do. Its instincts are to suckle, cry, breathe, wee and poo, but it's the parent that teaches a baby to burp by patting it on the back.
• Some European birds and other animals can produce a voice by breathing air into the wind pipe then belching it out.
• The World record for the loudest burp in the world is held by a Brit - Paul Hunn of Edmonton, London. It was registered at 118.1 dB on April 5, 2000. Previously, an American (John Oesch) was the record holder with a belch of 115.2 dB
• Definition of a belch as appears in Webster's:
  Pronunciation: 'belch
  Function: verb
  Etymology: Middle English, from Old English “bealcan”
  1 : to expel gas suddenly from the stomach through the mouth
  2 : to erupt, explode, or detonate violently
  3 : to issue forth spasmodically : gush