Some people don't need chewing gum.
But I can say that as you get older we seem to fart more often. Along with the fact that we can't hold a fart as long as we used to be able to do when we where young, they tend to sneak out quietly. Which reminds me of a joke.
--Sunday morning an old couple sitting in church during the ministers sermon, when the old lady starts sniggering and smiling to herself. She leans over to her husband and say's "I've just done a silent fart", her husband turns and looks at his wife, then leans over to whisper in her ear and say's "You need new batteries in your hearing aid"--
Have a great Sunday and sit still in church this morning.