Excessive diet, irregular life, invasion of external cold, imbalance of yin and yang, weakened gallbladder contraction, decreased bile, too long food retention time, and some bile retrograde into the stomach, causing damage and stomach discomfort. The root is bile. Take some purple bitter tea and cook some bitter brown sugar soup. Add brown sugar after cooking, but don't add it when cooking. Bitter vegetables originated in the south, with moderate brown sugar and light diet. Eat less, cold, spicy and greasy.