Acidity is a common digestive condition caused by excess production of stomach acid. It often leads to symptoms like heartburn, burning sensation in the chest, bloating, and sour taste in the mouth. Common causes include spicy foods, oily meals, irregular eating habits, stress, and excessive tea or coffee intake. To manage acidity, eat light and balanced meals, avoid lying down immediately after eating, and drink plenty of water. Reducing junk food and maintaining a healthy lifestyle can help prevent it. If acidity persists frequently, consulting a doctor is important for proper diagnosis and treatment.