Your lower esophageal sphincter (LES) is a muscular ring that connects your esophagus with your stomach. It relaxes to let food pass through but otherwise stays closed to prevent stomach acid from ...

I chalked the initial incident up to unfortunate weather conditions. It was 85 degrees, 80 percent humidity, with a UV index of six—not ideal for running at all, let alone an attempt at being ...

Sara Moniuszko is a health and lifestyle reporter at CBSNews.com. Previously, she wrote for USA Today, where she was selected to help launch the newspaper's wellness vertical. She now covers breaking ...

You've just enjoyed a great meal, maybe with a few drinks. Suddenly your throat is on fire, there's a bad taste in your mouth, and you've got heartburn. This is known as acid reflux, and is one of the ...