I dealt with my fair share of heartburn during both my pregnancies and I wish I had been hip to this chewing gum remedy. In 2005, researchers found that the saliva stimulated by chewing seemed to neutralize the digestive stomach acid that had leaked into the esophagus. Not only did it neutralize the acid, it seemed to help force fluids back into the stomach where they belong. Chewing gum, sugarless of course, for 30 minutes did the trick and can provide relief for up to 3 hours.
If you do suffer from heartburn on a regular basis, I would seriously think of trying this "folk" remedy since recent studies reveal that long term use of acid blockers, including Axid, Pepcid, Tagamet, and Zantac, may increase the risk of mental decline in later life.
Chewing gum on the other hand will keep you young! In spirit at least.