Elevate your body position when you sleep with pillows in order to make gravity work for you by keeping stomach acid inside the stomach. These are the common causes of heartburn. As you can see, there are ways on how you can prevent heartburn from happening or at least manage it effectively. It s just a matter of making small lifestyle modifications, such as changing your diet and exercise routines. When this happens, you will feel a burning sensation that starts on your diaphragm and work its way up to your chest. And, in most cases, you will even regurgitate and experiencing having a sour or bitter taste on your mouth. This is mainly the stomach acid reaching your mouth. Heartburn is painful and it can really stop you from doing any of your daily activities. By learning about the different ways to manage and treat heartburn, you will be able to lessen its frequency and also help you break free from having the heartburn condition controlling your life. Gastric acid reflux or heartburn occurs because of several reasons. By knowing about the different reasons that causes heartburn, you will be able to know how to prevent it from happening or at least take control of it. Ways to Prevent Nighttime Heartburn If you experienced heartburn before, then you know that it is unpleasant, painful and in most cases, distressing. You have to know that millions of people from different parts of the world suffer from heartburn and it is also a very old condition that humans suffer from. Basically, heartburn is a digestive problem that occurs when the acids inside the stomach comes in contact with the lining of the esophagus. This causes irritation and this will in turn cause heartburn. Heartburn can happen suddenly and without warning. Usually, this happens after a big meal before bedtime. You will often find that heartburn is associated with a sour taste in the mouth. This is actually the stomach acid that you taste, which explains the sour taste. Eating big meals will worsen your heartburn problem because your body or your stomach will produce excess acid in order to digest huge amounts of food.