The amount of diffusion depends on the difference in partial pressure of gas between the two sides of the membrane, diffusion area, distance, time, molecular weight of the gas and its solubility in the diffusion medium. Decreased diffusion function can be caused by emphysema and other lung tissue lesions, diffuse interstitial lung fibrosis, and other diseases. Clinically, when pulmonary pathology produces diffusion dysfunction, it is often accompanied by a significant ventilation/blood flow imbalance, the consequences of which all lead to hypoxia. It is advisable to eat foods that nourish Yin and moisten the lungs; foods that produce fluid and nourish the lungs; easily digestible or semi-liquid foods that are high in calories, vitamins and protein; light, liquid and fluffy foods; foods rich in calcium and iron. 1, oats: contains carbohydrates, protein (containing all the essential amino acids), fat and a large amount of plant fiber, vitamin B1 and vitamin B12, a small amount of vitamin E, minerals, riboflavin and saponin. 2, zucchini: zucchini has the function of clearing heat and diuretic, removing irritation and thirst, moistening the lungs and relieving cough, reducing swelling and dispersion. Cooking should not be cooked too badly to avoid nutritional loss. 3, lamb: rich in protein. Put the radish pieces and lamb together in the pot, half an hour later remove the radish pieces, such as put a few pieces of orange peel better.