Acidity happens when the stomach produces too much acid, or when acid flows back into the food pipe (esophagus). Normally, stomach acid helps digest food, but excess acid or weak valve control can irritate the lining and cause a burning sensation.

Key Points to Know

• Main cause: Overproduction of gastric acid.
• Common triggers: Spicy food, oily food, caffeine, alcohol, and skipping meals.
• Lifestyle factors: Stress, lack of sleep, and overeating worsen acidity.