1. Qi deficiency syndrome in middle-aged and elderly people is mostly caused by congenital deficiency, acquired malnutrition, serious illness or aging. Generally manifested as listlessness, pallor, dizziness, palpitation, spontaneous sweating, chest tightness and palpitation. The symptoms of qi deficiency are suitable for nourishing with qi-invigorating Chinese medicines, such as ginseng, American ginseng, astragalus root, ganoderma lucidum and so on. Foods with qi deficiency: beef, chicken, pork, glutinous rice, soybeans, lentils, jujube, crucian carp, carp, quail, eel, shrimp, mushrooms, etc. 2. Blood deficiency syndrome in middle-aged and elderly people is caused by fatigue, internal injury, excessive thinking, weakness of spleen and stomach, excessive blood loss, etc. The main clinical manifestations are: dull or sallow complexion, pale lips, dizziness, palpitation, numbness of hands and feet, dry stool, insomnia and dreaminess, delayed menstruation, loss of appetite and so on. It is suitable for nourishing blood with Chinese traditional medicines such as Angelica sinensis, Colla Corii Asini, Polygonum Multiflori Radix, Radix Rehmanniae Preparata and Mulberry. Foods with blood deficiency: black-bone chicken, black sesame, walnut meat, longan meat, chicken, pig blood, pig liver, brown sugar, red beans, etc. There is an old Chinese doctor, Professor Huang Zhen, who sees it very well.