What is Heartburn?
Although the name suggests it, heartburn has nothing to do with the heart. In fact, it's caused by a problem with the upper digestive system. Heartburn may happen when your stomach acid comes up or "refluxes" into the esophagus where it doesn't belong. Because the esophagus isn't built to deal with acid the way your stomach is, the acid can cause a burning sensation in the chest. That burning sensation is called heartburn.
Heartburn is more common than you may think. Just look at these numbers:
- An estimated 110 million Americans experience heartburn
- 45% report experiencing heartburn more than once per week
- 25 million adults suffer from heartburn on a daily basis
- 1/3 of American adults experience heartburn at least once a month
- Up to 80% of pregnant women suffer from heartburn