Nutritional components and functions of saliva
Saliva, commonly known as saliva? They are secreted by salivary glands, almost all of which are swallowed and absorbed into the blood through the gastrointestinal tract. In recent years, through the exploration of scientists, it has been found that saliva is indispensable in maintaining normal life activities of human body? Role? . Swallowing saliva every day can beautify, cure diseases and prolong life, and it is also a great anti-cancer soldier.
Mainly secreted by salivary glands. There are many salivary glands in the human body. Small salivary glands are distributed in the mucosa of various parts of the oral cavity, and there are four kinds of glands: lip, cheek, tongue and palate. The large salivary glands are parotid gland, sublingual gland and submandibular gland. Parotid gland, submandibular gland and sublingual gland are the main salivary secretion organs. At the same time, secretion is controlled by cerebral cortex, and also influenced by diet, environment, age, mood or salivary gland diseases. It is normal for people to secrete 1 0,000-10,500 ml of saliva every day. Modern medical research shows that more than 99% of saliva is water, but the remaining 1% contains various trace elements such as potassium, sodium, calcium and phosphorus and more than 500 kinds of protein.
? Qi is a life-prolonging drug, while body fluid is a life-prolonging drug. ? The most attractive substance in saliva is parotid hormone discovered by the late Japanese doctor Ogata Saburo. This hormone is secreted by the parotid gland, one of the three main salivary glands. Many scholars think so? Rejuvenation? Hormones.
Parotid hormone can increase the vitality of muscles, blood vessels, connective tissues, osteochondrosis and teeth, especially strengthen the elasticity of blood vessels and improve the vitality of connective tissues. As long as the parotid gland hormone is full, the functions of blood vessels, skin stroma and connective tissue will be strengthened, and the elasticity of skin will be maintained. But when people reach middle age, the parotid gland begins to shrink, and the hormones secreted gradually decrease. Frequent swallowing and body fluid movement can delay parotid atrophy.
Generally, people with strong physique secrete more saliva. Old and frail people often have insufficient saliva secretion, such as dry mouth, dry skin, decreased physical strength, tinnitus, hearing loss, facial loss, constipation and so on. Swallowing saliva can restore youth and resist aging.
Effect of saliva on human body: digestion
Saliva can chew food. Bound? One by one? Food balls? , conducive to swallowing. At the same time, saliva contains amylase, which can decompose starch in food into maltose, which not only makes people feel sweet, but also makes food enter the digestion process in the mouth.
Effect of saliva on human body: anti-inflammatory effect
Saliva contains lysozyme, secretory immunoglobulin A and other antibacterial components, which can inhibit or eliminate hemolytic streptococcus, typhoid Bacillus, Escherichia coli and staphylococcus, thus preventing inflammation of gums, mouth and throat.
Effect of saliva on human body: cleaning effect
The average saliva secretion per person per day can reach 1000- 1500ml. Food residues will accumulate in people's mouth, creating conditions for bacterial reproduction. The continuous flow of saliva in the mouth is equivalent to cleaning the teeth in time, thus keeping the mouth clean and healthy.
Effect of saliva on human body: anti-aging effect
Saliva contains a substance that can keep people young? Saliva parotid hormone? , can make people smart, strong teeth, strong muscles, so that even if people are old, they will be flushed and will not lose their youthful vitality.
Influence of saliva on human body: protecting teeth
Saliva contains nutrients such as sodium, potassium, phosphoric acid, calcium, protein and glucose, which can maintain oral ph and adjust pH value. The dissolution and deposition of enamel on tooth surface is a dynamic process, and calcium ions, phosphate ions and fluoride ions in saliva have important protective effects on enamel.
Effect of saliva on human body: healing effect
Dutch researchers have found that human saliva rich in histones can significantly shorten wound healing time. Therefore, in the case of sudden injury and inconvenient cleaning, you can apply some saliva to the wound.
Effect of saliva on human body: anti-cancer effect
Japanese researchers have found that saliva can scavenge superoxide radicals produced by carcinogens. The disinfection process of saliva will last for 30 minutes not only in the mouth but also in the stomach. Chewing each bite of food for 30 times can fully mix saliva with food, remove free radicals to the greatest extent, and have the best anti-cancer effect.
Detection function: Scientists can use saliva samples to check the drug content in patients. Using saliva instead of blood samples to check AIDS has also begun to be applied in practice. At present, scientists are still studying ways to detect diabetes, heart disease, cancer and other diseases through saliva. Saliva sampling is simple and easy to operate, which will become the trend of medical development.
Visible,? Drooling? It is precious and should not be wasted or discarded at will. We should be good at promoting the secretion of saliva, so as to achieve the purpose of strengthening the body, strengthening the body and prolonging life.
A complete collection of exercise health preservation methods
Get up early and stretch.
After a night's sleep, the human body is soft and relaxed, and the blood circulation is slow. When you wake up, you always feel lazy and weak. If the limbs are stretched, the waist and abdomen are stretched, and the muscles of the whole body are exerted, combined with deep breathing, it has the functions of expelling the old and absorbing the new, promoting qi and blood circulation, dredging meridians and joints, and invigorating the spirit, which can relieve fatigue, wake up and increase the strength of limbs. Therefore, we advocate getting up early in spring and stretching more.
Take more walks on weekdays
After a busy day's work, walking in the streets can quickly eliminate fatigue. One of the secrets of longevity of many birthday girls is to have a certain time to walk every day, especially in spring, because the climate in spring is pleasant and everything grows, which is more conducive to health. Walking should be informal, which varies from person to person. At the same time, we should also pay attention to: looking for fresh air and quiet environment; Choose a suitable walking time, and it is not suitable to travel immediately after meals; Old people should not walk on an empty stomach; Take a walk three times a week for 45-60 minutes each time; Wear loose clothes when walking; Decide the walking speed according to your own situation.
go on an outing
In the cold winter, the functions of the thermoregulatory center and internal organs have declined to varying degrees. After a season's rest, muscles and ligaments are inactive for a long time, shrinking and unable to contract. Going out to enjoy the scenery at this time not only exercises the body, but also cultivates the spirit. Especially in the countryside in spring, the air is fresh, the flowers are red and green, and a hundred birds contend. Being in such a beautiful embrace of nature will naturally make you feel comfortable. Moreover, since ancient times, people have the custom of going for an outing in spring, so it is a good way to keep fit.
It's a pleasure to go on an outing and watch kites soar with the wind. When flying a kite, people keep running, pulling wires and controlling. Through the cooperation of hands and eyes and the activities of limbs, the purpose of dredging meridians, harmonizing qi and blood and strengthening the body can be achieved. Watching the kite fly high and staring at it all the time, the eye muscles are adjusted and fatigue is eliminated. This activity is especially suitable for teenagers. Middle-aged and elderly people should pay attention to protecting their necks when flying kites. Don't lean back too long, but look up at each other alternately. It is best for 2 ~ 3 people to fly kites together. Choose a flat and empty site, and don't choose lakes, rivers and places with high-voltage lines to avoid accidents.
Do more outdoor activities
The so-called outdoor activities refer to some sports in outdoor, courtyard, park and nature, such as fishing, flower viewing, jogging, practicing Qigong and playing Tai Ji Chuan. Outdoor air is rich in negative oxygen ions, which is a good nutrient to promote the growth of biological bones. Although invisible, it is everywhere? Wandering? It is very beneficial to prevent rickets in children and osteoporosis in middle-aged and elderly people.
Exercise taboo
The exposed parts of limbs should not be too large during exercise to prevent joint pain caused by wet and cold; Don't exercise where dust flies in the wind, learn to breathe through your nose, and don't choke the wind; Be prepared before exercise, swing your arms, kick your legs, turn your waist, and do strenuous exercise after muscle and joint activities. Don't do morning exercises too early in early spring. In early spring and February, the temperature is low in the morning, and the air conditioner attacks people. Going out to exercise too early, is it easy to get hurt? Cold? Some people have a cold, while others cause joint pain, stomach pain and even a crooked mouth. Take off your clothes after exercise to prevent colds. If you sweat, dry it at any time. Don't wear wet clothes and let the cold wind blow, so as not to catch cold and cause diseases. Exercise should be comprehensive, not only choose the action of stretching limbs, but also the flexion and extension of back, abdomen and chest and waist. Don't lie on the grass during or after exercise, otherwise it will easily cause rheumatic low back pain or arthritis.