1. "Beauty Gene"-Epidermal Growth Factor About 100 years ago, the German chemist Emile Fischer proved that amino acids in protein combine with each other to form polypeptide chains, such as two glycines that remove one molecule of water to form glycine. The bonds that grow are called peptide bonds. If the reaction continues, a polypeptide containing many amino acid residues can be produced. There are many low molecular weight peptides in animals, plants and bacteria, which have very important physiological functions. Polypeptide hormone is one of the most important. Some scholars have found that bird's nest contains a very important polypeptide-epidermal growth factor (EGF). This substance exists in most body fluids, especially milk and semen. In human body, it is mainly synthesized by submandibular gland and duodenal gland, which has many important physiological functions such as inhibiting gastric acid secretion and protecting duodenum. EGF also has a very important function, so it is called "beauty gene". Can stimulate the division and proliferation of various cells, promote cell differentiation, quickly repair damaged skin, and promote the healing of surgical wounds and wounds; It can affect the delicate and aging of human skin, activate the cells of aging skin, and make the skin smooth and elastic. The above findings are not only good news for female friends all over the world. In fact, over the years, many popular movie stars in Hong Kong and Taiwan, especially female stars, have always had a soft spot for bird's nest. Under the heavy work pressure of rehearsals or concerts, bird's nest has become their close companion for skin care and eternal youth. These renderings through various media have long been an open secret. Now it seems that the magical effect of bird's nest in beauty and skin care is not only proved by a lot of practical experience, but also has its scientific basis. Mitogen, which can improve immune function, also extracted a mitogen called promoting T cell division or B cell division from bird's nest. We know that lymphocytes are important immune cells in human body, mainly including T lymphocytes and B lymphocytes. This mitogen in bird's nest can improve human immune function by stimulating mitosis of lymphocytes. This may also be the material basis for bird's nest to nourish and strengthen the body. 2. The therapeutic effect on respiratory diseases can be said to be the classic curative effect of bird's nest. Since ancient times, all kinds of medical books have emphasized the therapeutic effect of bird's nest on respiratory diseases (called lung system in ancient times), such as tuberculosis, cough, hemoptysis and phlegm asthma, which are called tuberculosis and bronchitis today. This has been introduced in the previous chapter. In addition, for people who have bad smoking habits, bird's nest is not a rare "lung washing" product. According to domestic scholars' reports, the compound bird's nest soup with bird's nest as the main medicine has treated more than 500 patients with chronic bronchitis and achieved remarkable clinical effect. It also further verifies the description of the curative effect of bird's nest in ancient books. 3. Prevent tumors and reduce the adverse reactions of radiotherapy and chemotherapy. At present, malignant tumors still pose a serious threat to human health. Medical workers all over the world are making unremitting efforts to finally subdue the cancer demon. Now it is certain that "three early" (that is, early prevention, early diagnosis and early treatment) is an effective measure to reduce the incidence and mortality of cancer and improve the survival rate of cancer patients. Among them, early prevention is the most active and effective method. It takes a long time for normal cells to turn into cancer cells under the action of carcinogenic factors. Even in today's increasingly serious pollution, 60%-80% of cancers can still be prevented. There is a famous saying in Chinese medicine: "Healthy qi should be kept inside, and evil should not be made." In other words, when the human body is in good health and has strong resistance, it is difficult for various pathogenic factors to invade the human body and cause diseases. Wild bird's nest collected in pure natural environment can completely improve human immunity and achieve the purpose of preventing cancer. For untreated cancer patients, bird's nest should not be chosen at this time. To put it more seriously, it is undoubtedly carrying firewood to put out the fire. The treatment of cancer is nothing more than surgery, radiotherapy and chemotherapy. After completing these treatments, patients are often weak and have low immunity. At this time, throwing bird's nest with good nourishing effect is simply a gift in the snow. For example, in the 1980s, Hong Kong scholars found that bird's nest can enhance the human body's resistance to radiation damage such as X-rays, which provided a strong theoretical basis for the application of bird's nest in cancer radiotherapy patients. 4. Cardiotonic and antihypertensive effects Japanese scholar Mu once did an animal experiment to study the pharmacological effects of bird's nest: anesthetize the puppy, connect the artificial respiration machine, open the chest of the puppy, put various measuring instruments in the puppy's heart, and record the puppy's cardiac contractility and blood pressure. Then the bird's nest extract was smeared on puppies, and the changes of heart rate, myocardial contractility and blood pressure after smearing were observed. The results show that the bird's nest extract has no effect on the heart rate of puppies, but can significantly enhance the myocardial contractility of puppies, so it can be considered that the bird's nest extract has cardiotonic effect. Moreover, from a certain dose, the extract of bird's nest shows the effect of lowering blood pressure, which specifically acts on diastolic blood pressure, which is commonly called hypotension. Friends with high blood pressure know that it is relatively more difficult to lower systolic blood pressure. At present, cardiovascular and cerebrovascular diseases have become the number one killer endangering human health. This cardiotonic and antihypertensive effect of bird's nest will bring more hope to mankind. 5. Anti-oxidation and anti-aging The latest medical research proves that bird's nest is an anti-oxidation food with detoxification effect, and long-term consumption can achieve the purpose of delaying aging. Aging is a series of degradation processes of morphological structure and physiological function that people's body gradually produces with the growth of age, and it is a natural law of life activities. But if we can correctly grasp the objective law of aging and choose and create favorable conditions, we can delay aging and prolong life. The process of aging is accompanied by a series of decline in biological functions. The immune function of the elderly is obviously decreased, which is mainly manifested in the decrease of immune monitoring function, cellular immune function and lymphocyte division and proliferation ability, which leads to low immune regulation function and accelerated aging. Modern medical research has confirmed that human aging is closely related to free radicals in the body. Free radical metabolism and its scavenging system are unbalanced, and the function of repairing genetic material damage decreases, and the activity of superoxide dismutase (SOD) responsible for scavenging free radicals decreases. The superoxide produced in the process of biological metabolism can not effectively scavenge ion free radicals and hydroxyl free radicals, which may make unsaturated fatty acids in the biofilm oxidize and affect the structure, attack protein to make it cross-link and change the function of carbohydrates, and then damage DNA to cause mutation and accelerate aging. Bird's nest and its extract, on the one hand, have the function of enhancing immune function, on the other hand, have the function of antioxidation, and have a strong antagonistic effect in preventing aging, so they also have a very magical effect. Probably the female stars who have been famous for a long time in film and television music have the most experience of this. 6. Anti-fatigue is a common feeling of many people in today's society. The pace of life is accelerating, and the pressure of work makes people breathless. How can it be a "tired" word? Ordinary people are already very tired, let alone stars. The anti-fatigue effect of bird's nest has been well confirmed by those so-called stars. In entertainment news, it is easy to see stars eating bird's nest after concerts or filming to keep their energy. In the catalogue of health food stores approved by China's Ministry of Health 1999, there is American ginseng bird's nest oral liquid, the approved function is anti-fatigue! The benign regulation of the growth environment of bird's nest on human body, the problem of environment and sustainable development has become the most puzzling problem for human beings on the earth today. The negative impact of environmental pollution on human health is shocking. The earth refuses pollution, and human beings call for green struggle. The bird's nest kept in the boudoir is very consistent with the "green" concept of human beings. Bird's nest mostly grows in seaside caves far away from human habitation, with constant humidity, low noise, fresh air and many negative ions; Moreover, today, human environmental pollution is getting more and more serious from bottom to top, and the contents of harmful microorganisms and radioactive elements in inaccessible caves are far lower than the atmospheric environment on the ground. The bird's nest produced in this excellent environment can undoubtedly provide excellent conditions for some patients to improve their physical and mental condition and treat diseases. It is reported that in Singapore, more than half of pregnant women eat various bird's nest products to ensure that their future babies are healthier and avoid losing their babies at the starting point. Facts have proved that eating bird's nest two or three months before delivery can not only make the mother strong, but also make the future newborn baby stronger, whiter, more beautiful and less prone to illness. For postpartum women, bird's nest is the best natural nourishing food to relieve the fatigue of nursing children and restore their slim posture before delivery. Its taste is sweet and flat, and pregnant women can take tonic after delivery without any adverse reaction. 8. Other functions reported by other functional media include: anti-aging, improving blood circulation, and having obvious curative effect on the decline of physical strength, mental vitality, memory and physiological function of middle-aged and elderly people. Skin care and beauty, make skin smooth and fair, reduce facial wrinkles and acne. Enriching blood and promoting blood circulation, removing blood stasis and promoting tissue regeneration have a good effect on female menstrual discomfort, menstrual pain and menorrhagia. Taking it after delivery can promote the recovery of uterus and body shape. Lowering cholesterol has a good preventive and therapeutic effect on angina pectoris, chest tightness and shortness of breath caused by hypertensive cerebrovascular occlusion. It can strengthen the waist and kidney, and is effective in treating soreness of waist bones and joints of limbs, rheumatoid arthritis, hand and foot paralysis, dizziness and floaters. Eliminate fatigue caused by academic or work pressure and enhance memory. Enhance body resistance, prevent colds and colds, and treat weakness, excessive phlegm and cough. It has certain curative effect on hepatitis B and liver cirrhosis.