Diet: Three Yang-nourishing dishes in spring: leek, spinach and lettuce. Leek is the best in spring. The ancients said that "leeks are fragrant in spring and smelly in summer", and leeks are warm and most suitable for human aphrodisiac. However, it should be noted that the liver is flourishing in spring, which affects the spleen and stomach. Leek is not easy to digest, so don't eat too much at a time. Onion is also a good aphrodisiac. Scallion can strengthen yang and dispel cold, and contains allicin, which has a strong bactericidal effect, can induce cells to produce interferon, enhance immune function and improve anti-cancer ability. Garlic is mild in nature and has a strong bactericidal effect, which can promote metabolism, stimulate appetite and prevent arteriosclerosis and hypertension. In addition, you can also eat some shepherd's purse, celery, chrysanthemum seedlings, horseshoes, eggplant, yam, mushrooms and so on. These foods can moisten the liver and improve eyesight. At the same time, you can take some tonics at the right time. For example, tremella can moisten the lungs and produce fluid, benefit the yin and soften the liver, eat less sour and eat more sweet food, and nourish the liver and kidney, which is good for disease prevention and health care.