Today, when we advocate returning to nature, people seem to forget that we have had two important healthy drinks since ancient times-honey and vinegar. 1. honey: the nutritional and anti-aging value of honey has always been highly valued, and it has the reputation of "milk for the elderly". Li Shizhen, a medical scientist in the Ming Dynasty, recorded in Compendium of Materia Medica: Honey has six functions, which can clear heat when it is cool when it is born; The heat is warm, so it can make up the middle; Sweet and peaceful, so you can detoxify; Soft and moist, so it can moisten dryness; Slow can go to the urgent, so it can stop the pain of heart sores. Modern nutrition research shows that honey has extremely high nutritional value. Its main components include not only monosaccharides such as glucose and fructose, but also 16 amino acids such as alanine, phenylalanine, glutamine, asparagine and histidine. There are many minerals in honey, mainly phosphorus, copper, iron, magnesium, nickel and so on. In addition, the metabolic process of human body can not be separated from the help of various enzymes. Honey contains sucrase, amylase, glucose invertase, catalase and other enzymes. Honey also contains many vitamins necessary for maintaining human health, enhancing immune function and preventing cardiovascular diseases, such as vitamin B 1, B2, B6, C, folic acid, nicotinic acid and so on. Monosaccharide in honey can be absorbed by human body without digestion, which is especially suitable for the elderly with weak digestive system and decreased metabolic function. Honey contains six kinds of amino acids, which are necessary for human life activities. Among the enzymes it contains, sucrase and amylase can promote the digestion and absorption of sugar; Glucose invertase is directly involved in substance metabolism; Catalase has the function of anti-oxygen free radicals, which can prevent the body from aging and canceration. The mineral content in honey is quite similar to that in human blood, which is beneficial to human body's absorption of minerals. Because of the existence of minerals, honey becomes an alkaline component in the body, which can neutralize the acidic components in the blood, so that people can quickly relieve fatigue and improve health. In recent years, honey has been used in health care and nutrition at home and abroad. For the elderly with hypertension, it is very beneficial to drink a cup of honey water every morning and evening, because honey contains potassium, which can excrete sodium after entering the human body and maintain the electrolyte balance in the blood. For patients with arteriosclerosis, eating honey often has the functions of protecting blood vessels, relaxing bowels and lowering blood pressure. In addition, for patients with chronic hepatitis and poor liver function, eating honey often can improve liver function. Honey is a good natural nutrient for patients with pulmonary tuberculosis and chronic cough caused by fatigue, which can enhance physical fitness. Elderly people with gastric and duodenal ulcer diseases often take honey for better effect. For heartburn patients, 30 grams of honey with warm boiled water and a few drops of ginger juice can relieve the symptoms. 2. Vinegar: It is both a condiment and a good health care product. Besides acid substances such as acetic acid, lactic acid, malic acid and succinic acid, it also contains 18 kinds of amino acids and vitamins. Such as vitamin C and nicotinic acid, have the health-care functions of delaying and eliminating fatigue, regulating the pH of body fluids, helping digestion, promoting absorption, preventing aging, sterilizing and resisting viruses, preventing obesity, inhibiting and killing parasites such as roundworms and pinworms, resisting cancer, caring skin and sobering up. China's scientific research confirmed that acetic acid in vinegar has a strong ability to kill a variety of bacteria and fungi, including Pseudomonas aeruginosa, diphtheria Bacillus, Salmonella and Trichophyton, and even measles and mumps virus. Therefore, it is often used to prevent and treat various infections of skin, upper respiratory tract and gastrointestinal tract. In the cold season, classrooms, shopping malls and other public places can be fumigated with vinegar, which can play a role in preventing and treating colds. This is because the cold virus has no cell membrane, and the change of pH in the external environment will affect its metabolic activity, thus hindering its division and proliferation and leading to its death. Secondly, acetic acid is a volatile acidic substance. Before eating, it can stimulate olfactory cells and make the brain nerve center send out the signal of "eating", which is conducive to coordinating the secretion of various digestive juices and making people have an appetite. Vinegar contains vitamin C and nicotinic acid, which can dilate blood vessels, promote the excretion of cholesterol and enhance the elasticity and permeability of blood vessels. Moreover, vinegar can also enhance renal function and have diuretic effect, through which sodium is discharged, which indirectly causes blood pressure reduction. Therefore, people can use vinegar, or soak soybeans, peanuts or vinegar eggs in vinegar to prevent and treat hypertension. Patients with liver disease are often jealous, which not only stimulates appetite, but also contains amino acids and vitamins necessary for the synthesis of protein. Protein is of great significance to the repair of liver tissue injury. Chinese medicine believes that vinegar can "stimulate appetite and nourish liver" and can be combined with vinegar and brown sugar to treat liver diseases. In anti-cancer, vinegar can kill viruses and various molds, so it can prevent normal cells from mutating or becoming cancerous. Recently, many scholars have isolated and extracted anti-tumor active substances from rice vinegar. Animal experiments show that these active substances have significant anti-cancer effects. In terms of beauty and slimming, the amino acids contained in vinegar can not only promote the transformation of excess fat into body consumption, but also make the metabolism of sugar and protein go smoothly, so it has a good slimming effect. Moreover, the compounds in vinegar, such as acetic acid, lactic acid, amino acids, glycerol, aldehydes, etc., have a mild stimulating effect on human skin, can dilate blood vessels, increase blood circulation of the skin, and make the skin shiny and ruddy. In terms of hangover, vinegar can resist and reduce the inhibitory effect of alcohol, increase gastric juice secretion, dilate blood vessels, promote blood circulation, improve the metabolic capacity of the liver, increase renal function, accelerate diuresis and promote the rapid excretion of alcohol. But drinking vinegar for a long time will corrode teeth and decalcify them, so dilute them with water and rinse your mouth with water after drinking. People with hyperacidity should not drink vinegar, especially patients with chronic kidney disease, and even cause acidosis.