Various medical experts provide health tips in their respective fields. A cardiovascular doctor recommends eating nuts, walking quickly for an hour a day, and sitting quietly before sleep. A respiratory doctor suggests drinking lily and yam porridge, laughing often, and doing abdominal massage. A digestive doctor advises eating warm breakfast, not overeating at dinner, and massaging the abdomen. A liver disease doctor recommends drinking lycium water, rose tea, and sleeping on one's side. An endocrinologist suggests eating bitter gourd, seaweed, and exercising at the right time. A pediatrician advises against giving children special milk and functional drinks, and using antipyretics without a doctor's advice. A gynecologist recommends that some gynecological diseases can be self-healing, and advises against prolonged sitting. A nephrologist suggests eating high-fiber foods, drinking lemon juice, and reducing salt intake. A dermatologist recommends washing hands less often, applying vitamin C liquid, and using sheep oil. An oncologist advises supplementing folic acid, sleeping well, and getting some sunlight.