The fundamental principle of the four seasons is to nourish yang in spring and summer and yin in fall and winter. In Chinese medicine theory, human health should follow the changes of the four seasons, that is, people and the four seasons are an organic whole, only by following the laws of nature can we get healthy. Generally spring is more suitable for sports, is the season of birth; summer to avoid the heat, do not make their yin loss too much; autumn must pay attention to the prevention of colds and flu, increase or decrease the clothing, autumn for the lungs of the test is relatively large, there are a number of cardiovascular and cerebral vascular diseases, should pay attention to; winter is suitable for refrigeration, that is, to eat well, but not too much, and to adhere to the exercise, to prevent overweight, the winter is a good season to nourish the kidneys.