"Lingshu itself" contains: "The health of the wise must also be suitable for the four seasons of cold and heat, in harmony with emotions, and both rigidity and softness. If so, evil spirits will not come, and you will live for a long time. " Under the general principle of avoiding cold and keeping warm in winter, gathering yang to protect yin, benefiting kidney and replenishing essence, combined with the lucky characteristics of this winter, I will introduce some health-preserving principles to you: lying early and getting up late, waiting for the sun. Su Wentong's Theory of Wondering the Heaven says: "Anyone who belongs to the Yang will lose his life if he loses the sun, so he will not show his strength, so he should be bright with the sun, so the yang must go up and guard against the outside." In winter health care, we should pay special attention to the care of yang, and try to avoid cold pathogens hurting yang. Su Wen's Theory of Four Temperaments and Spirits clearly states: "Go to bed early and get up late, and you must wait for the sun." Therefore, we should go to bed early and get up late in winter. Winter exercise should also follow the principle of getting up late. Consolidate the mind and keep the spirit. Traditional Chinese medicine has always paid attention to nourishing the heart. The scene of everything dying in winter is gradually obvious, and it is easy to get emotional and depressed.