First of all, heartburn has nothing to do with the heart. It should be called upper digestive burn; but let's face it, that doesn't roll off the tongue as easily. So what is heartburn? It's when the stomach acid reflux back into the esophagus, which causes a burning sensation in the chest. That's only part of the story.
Take a look at the links below to learn about heartburn and how TUMS helps provide fast relief from it.