nocturnal heartburn

What causes heartburn to be worse at night?

1. Introduction Heartburn that worsens at night is primarily caused by the loss of gravitational assistance when lying flat, coupled with significant reductions in saliva production and the esophageal swallowing reflex during sleep. These physiological changes allow stomach acid to effortlessly breach the lower esophageal sphincter, pool in the delicate esophagus, and remain there for … Read more

Why am I suddenly experiencing severe heartburn every single night?

1. Introduction Sudden, severe heartburn occurring strictly at night is primarily caused by the regurgitation of gastric acid into the esophagus while lying in a supine position, a condition frequently associated with gastroesophageal reflux disease. When the body is horizontal, gravity no longer assists in keeping stomach contents contained, allowing acidic fluid to bypass a … Read more