I just wrote an article which summarizes my knowledge about aerophagia.

Here is an excerpt from it:

Aerophagia is defined as a condition when a person swallows too much air. This air is usually goes to the stomach. People with Aerophagia are believed to have excessive belches due to air swallowing. You probably also heard terms like constant or chronic belching or burping. These conditions are closely related to aerophagia but not necessarily caused by it.

You can read complete text of the article at http://www.manageyourheartburn.com/aerophagia.php

Since excessive burping (or some called it chronic belching) happened to me a lot of times I always was curious why the heck it happens. Recently I was reading through some forums and wanted to share ideas on that subject with my readers:

- You’re to anxious/nervous. Yeah – sound quite usual. But it is the most common reason why it happens. If you burp all the time – try to watch after yourself for 20 minutes and make sure that you’re not swallowing air. If this was the reason for burping in 3-5 minutes you should get rid of it completely. Though note that some people swallow air unconciously even without thinking about it – so it maybe quite hard to stop doing it.

- Milk and milk products. Large percentage of adults have lactose intolerance. So try to stop milk consumption for sometime and result may surprise you.

- Carbs. Some of carbs products cause belching.

- Aerophagia. You just swallow air too much – could be related to anxiety. Try to control it. I know – it is easy to say – hard to play.

I think there are many more to be added to this list but I hope I covered most popular ones.

Read some more details on constant belching here http://www.manageyourheartburn.com/articleview.php?ArticleID=16