Four seasons health care is to regulate the body through diet and medication according to the changing law of the human body in the four seasons. For example, the law of the four seasons is that spring is long and summer is long, autumn is long and winter is long, spring is wet and summer is wet, and autumn is wet and winter is dry. People should also keep in good health according to the changes of the four seasons. Spring is the season of hair growth, and people have regained their vitality. If they want to farm in the field and consume their physical strength, they should pay attention to tonic and balanced nutrition. It's hot and humid in summer, so we should pay attention to heatstroke prevention and dehumidification at night, and eat more foods that reduce temperature and promote dampness, such as watermelon, wax gourd and adzuki bean. When the air is dry in autumn, we should pay attention to moistening the lungs and invigorating qi. When it is cold and dry in winter, we should pay attention to cold protection and strengthen the body, and eat more beef and mutton.