Heartburn is that burning sensation in your chest or throat that’s caused by acid rising up from your stomach. It’s a common symptom of the condition called gastroesophageal reflux disease or GERD, which is also called acid reflux.
When you talk to your doctor about heartburn, the doctor will first ask you about your diet. That’s because eating certain foods is one of the main causes of heartburn. Coffee (including decaf), soda, tomatoes, alcohol, and chocolate are often heartburn triggers.
At the entrance to your stomach is a valve, which is a ring of muscle called the lower esophageal sphincter (LES). Normally, the LES closes as soon as food passes through it. If the LES doesn't close all the way or if it opens too often, acid produced by your stomach can move up into your esophagus. This can cause symptoms such as a burning chest pain called heartburn. If acid reflux symptoms happen more than twice a week, you have acid reflux disease, also known as gastroesophageal reflux disease...
But eliminating foods that cause heartburn problems may not be enough. Many other factors can also play a role in triggering heartburn and causing GERD.
Besides foods, what are other causes of heartburn?
Other heartburn triggers include:
Overeating. Overeating can trigger heartburn. That’s because the stomach remains distended when there are large quantities of food in it. There is a muscle located between your esophagus and your stomach. Your esophagus is a tube that lets food pass from your mouth to your stomach, and the muscle between it and your stomach is called the lower esophageal sphincter or LES. The more your stomach stays distended, the more likely the LES won't close properly. When it doesn’t close, it can’t prevent food and stomach juices from rising back up into the esophagus.
Eating habits. Eating too rapidly can be a heartburn trigger. So can eating while lying down or eating too close to bedtime. It helps not to eat during the two or three hours before you go to bed.
Smoking.Smoking cigarettes is another potential cause of heartburn and GERD.
Hiatal hernia. Your diaphragm is a muscular wall that separates your stomach from your chest. It helps the LES keep stomach acid where it belongs. When the LES and the upper part of the stomach move above the diaphragm you develop a hiatal hernia. The hernia makes acid reflux, which causes heartburn, more likely. You may not even know you have a hiatal hernia. Often, heartburn is the only symptom.
Obesity or being overweight. Research suggests that being obese or overweight can be a trigger for heartburn and reflux disease. In one study comparing people with and people without GERD, those who had heartburn problems typically were more overweight than those without GERD.