Regurgitation can feel like burning, warm liquid built up in your throat and the back of your mouth. The result is a bitter aftertaste. Frequent regurgitation may be a sign of GERD and may ...

GERD affects about 20% of people in the United ... called the lower esophageal sphincter (LES), relaxes to let food and liquid into the stomach. It also prevents the stomach’s contents from ...

Swallowing forces temporarily break the magnetic bond, allowing food and liquid to pass into the stomach. Magnetic attraction closes the LES after swallowing, to reinforce the body's natural barrier ...