What causes heart burn?

Food: Food is the usual cause of heartburn, which is a burning sensation or sour taste in the back of your throat. Severe cases can be due to ulcers and can even lead to cancer of the esophagus. Avoidance of foods that cause heartburn is the primary recommendation but daily medication may be necessary if symptoms continue or occur during sleep.

Acid n food: Acid and or food contents from your stomach traveling through your esophagus.

See a doctor...: Heartburn is very common. There are many causes including impaired esophageal motility, lower esophageal sphincter problems and hiatal hernia. Certain foods e.g. Chocolate and behaviors e.g. Smoking trigger symptoms as well as eating too fast or overeating. For chronic symptoms, see a gastroenterologist for an evaluation. Good luck!

Multiple things: Can lead to heartburn. Heartburn is a result of stomach acid moving backward into the esophagus (reflux). All people have some episodes of reflux daily but may not be symptomatic. When barriers to reflux are removed and/or certain risk factors or precipitants are present it occurs more frequently. ex Haital hernia,obesity, alcohol use , gastric emptying delay, fatty meals, lying down after eating

Many: Acid reflux from the stomach into the esophagus. Alcohol, smoking, caffiene, over eating, laying down within 2 hours of eating, all contribute to acid reflux. If you have frequent heartburn you should see your doctor for treatment and possibly a scope since frequent acid reflux leads to a barrett's esophagus which predisposes you to esophageal cancer.