Winter is a tonic season, many people think that eating tonic is considered tonic, in fact, it is not. Liu Dongmei, deputy director of the Department of Dermatology at the Fifth Hospital, said that health care has to be a comprehensive conditioning. Liu Dongmei said, first of all, is to drink the right amount of water. When the water in the body is reduced, it will make the skin dry, skin elasticity is reduced and wrinkles appear. To ensure moisture, young women should preferably drink 1000 to 1500 ml of water every day. The second is to pay attention to dietary diversity, if partial food, will lead to nutritional deficiencies, it is easy to cause some kind of disease, especially in the skin tone, giving people a sense of emaciation and aging. Again to master the acid-base balance of food. Food is divided into acidic and alkaline, such as fish, meat, eggs are acidic food, fruits and vegetables for alkaline food. Acidic food contains chemical substances sulfur, chlorine, phosphorus more, eat to the stomach, by metabolism is a bad stimulus to the skin, making it greasy and rough; alkaline food contains a lot of metal elements such as potassium, sodium, magnesium, calcium, excretion to the outside, and acidic substances and neutralization, can make the skin become lubricated and tender, so it is important to maintain the acid-base balance of diet. Another thing is to pay attention to more vitamins. Vitamin E has the role of promoting protein synthesis and delaying skin aging. Therefore, you can eat more corn oil, bean embryos and leafy greens that are rich in vitamin E. If the lack of vitamin B, it will make people muscle weakness and rough skin, so eat some coarse grains, milk, egg yolk, lean meat and liver to supplement. “Minerals are indispensable.” Liu Dongmei said, iron is an important component of the blood, the human body iron deficiency pale, hairless, mental discomfort. The content and absorption rate of iron in everyday foods, in order, are animal liver, heart, kidney and lean meat, egg yolk, soybean products, dark vegetables and fruits. Zinc deficiency affects beauty mainly in terms of susceptibility to acne and small flat female breasts. Zinc is most abundant in animal reproductive organs and oysters, followed by liver, kidney, lean meat and egg yolk; plant foods are richer in peanuts, walnuts, whole wheat flour, potatoes and radishes. Calcium deficiency can seriously affect the growth and development of adolescents and middle-aged beauty, can cause rickets, chondropathy and osteoporosis, so that bones, teeth easy to break, fall off, hair yellowing, nails lusterless. The content and quality of calcium in food in order: dairy and soy products, seafood (fish, shrimp, shellfish and seaweed), green vegetables and various fruits. Liu Dongmei especially stressed the importance of keeping bowel movements open. She said that modern medical research has concluded that people who are chronically constipated are bound to “lose their looks.” As we all know, the human intestinal tract is not used every day to produce waste, they continue to accumulate will become a “stool”. The accumulation of feces in the intestines, not only cause bloating, bad breath, dizziness, loss of appetite, fatigue and other diseases, and because of the role of bacteria in the body will continue to ferment, corruption, and finally produce harmful toxins, with the cycle of absorption by the skin cells, resulting in facial freckles, acne, abscess blisters, pimples, roughness and other problems. Therefore, women’s skin beauty especially need to keep the bowels unclogged. The fundamental measure is to develop the habit of daily bowel movements, strengthen exercise, and eat more fresh vegetables, fruits and laxative foods such as honey, walnuts and sesame. “Of course, it is especially important for women to increase the intake of collagen and elastin.” Liu Dongmei said collagen plumps up cells, which results in plump skin and fewer wrinkles. Elastin increases the elasticity of one’s skin and makes it delicate. Foods such as pig’s feet, animal tendons and pig skin contain the most of these two proteins.