Yin deficiency can cause cold-dampness. According to Chinese medicine, yin deficiency leads to hyperactivity of yang, which consumes yin essence, while yin and yang root each other and use each other, so when yin essence is consumed, yang deficiency occurs, which leads to cold-dampness within the body. Therefore, patients with Yin deficiency should be regulated as early as possible. Common symptoms of people with yin deficiency include warmth in the palms and feet, flushed cheeks, dryness in the eyes, thirst, frequent insomnia, poor quality of sleep, and emotional impatience. This group of people usually need to eat a light diet, avoid spicy and stimulating food, should also strengthen the exercise, develop a regular work and rest habits, do not stay up late, and try to maintain an optimistic mood. If there is obvious discomfort, you can choose some yin nourishing Chinese medicine under the guidance of a physician, but not blindly use their own medicine.