big fat tummies

why are so many opera singers big and fat? does it help their singing or is it a coincidence? I don't know if it helps with the singing or whether it has to do with keeping one's mouth open for too long that it leads to the habit of taking big mouthfuls. I can see though how a big fat tummy can develop if diet can't be controlled. perhaps an unintended consequence of opera singing?

http://www.thinkaloo.com

If you fart and burp at the same time...

..would it make a vacuum in your tummy??

http://www.thinkaloo.com