Saliva is saliva, the reason why spring loves to produce saliva. Saliva, also known as saliva and saliva, is a colorless and thin liquid secreted by the salivary glands in the oral cavity of animals. It plays a key role in the digestion process of food. Although saliva was called "jinjinyuye" in ancient times, in modern times it has always felt unclean and indecent to people. Therefore, the word "spit" appeared to express humiliation to people. Saliva is mainly secreted by three salivary glands: parotid gland, submandibular gland and sublingual gland. Saliva secretion is controlled by the cerebral cortex and can also be affected by diet, environment, age, emotion or salivary gland lesions. It is normal for a person to secrete 1,000-1,500 ml of saliva every day. Babies produce more saliva than adults.
Saliva is a colorless and thin liquid, commonly known as saliva. Although it was called "gold and jade liquid" in ancient times, it has always been considered unclean and indecent in modern times. Digestive juice is a mixture of fluid secreted by three pairs of major salivary glands (mandibular, parotid, and sublingual glands) and mucus secreted by many small mucus glands on the oral wall. Saliva is colorless and odorless, with a pH of 6.6 to 7.1. The daily saliva secretion of normal people is about 1.0 to 1.5 liters (the daily saliva secretion of cattle, sheep and other herbivores is as much as 1/3 of their body weight). Human saliva is 99% water.
It is mainly secreted by the salivary glands. The human body has multiple salivary glands. The minor salivary glands are distributed in the mucous membranes of various parts of the oral cavity. There are four glands of the lip, cheek, tongue and palate. The major salivary glands include the parotid gland, sublingual gland and submandibular gland. The parotid glands, submandibular glands and sublingual glands are the main saliva secreting organs. While secreting saliva, they are controlled by the cerebral cortex and are also affected by diet, environment, age, emotion or salivary gland lesions. It is normal for a person to secrete 1,000-1,500 ml of saliva every day.
It is formed by mixing the fluid secreted by three pairs of large salivary glands (mandibular gland, parotid gland and sublingual gland) and the mucus secreted by many small mucus glands on the oral wall
The digestive juices of saliva. Saliva is colorless and odorless, with a pH of 6.6 to 7.1. The daily saliva secretion of normal people is about 1.0 to 1.5 liters (the daily saliva secretion of cattle, sheep and other herbivorous animals is as much as 1/3 of the body weight). 99% of human saliva is water. The organic substances are mainly salivary amylase, mucopolysaccharide, mucin and lysozyme. The inorganic substances include sodium, potassium, calcium, chlorine and thiocyanate ions. The composition of saliva varies with the type of animal. People and some mammals (rabbits, rats, etc.) contain amylase in their saliva, while dogs, cats, horses, etc. have almost no amylase in their saliva. Mixing human saliva with food can dissolve the soluble components in the food, causing them to act on the taste buds and induce taste. Saliva prevents dryness of the mouth and lubricates food; it also cleans the mouth and flushes away food debris remaining in the mouth. When harmful substances enter the mouth, saliva can dilute and neutralize them and wash them away from the oral mucosa. Saliva moistens the mouth and makes it easier to speak. Before the food is mixed with gastric acid, the salivary amylase in the chyme in the stomach can break down the starch in the food into maltose. Lysozyme and thiocyanate ions in saliva have a bactericidal effect. Mucin not only has a lubricating effect, but also neutralizes gastric acid after entering the stomach. Under the action of gastric acid, it adheres to the mucosa and resists the corrosion of gastric mucosa by gastric acid. Saliva also has an excretion function. Some substances and viruses in the body, such as potassium iodide, lead, mercury, rabies and polio germs, and HIV, can be excreted or transmitted through saliva. When the parotid glands are infected by the mumps virus, it can cause mumps (mumps). The patient's parotid glands become swollen and painful, and saliva secretion decreases. The disease is contagious and is mainly spread by saliva droplets from patients. Some birds have well-developed salivary glands, and they use their saliva to glue seaweed together to build nests. For example, the nests built by swiftlets are the famous tonic "bird's nests" in China.
Diva is saliva secreted by the salivary glands around the mouth. It lubricates the oral mucosa, dissolves food and facilitates swallowing. It also contains amylase and lysozyme, which can aid digestion and have a bactericidal effect. . Therefore, saliva is a physiological substance secreted by the human body itself. [1]
Function of saliva
①Moisten the mouth and food, making it easier to speak and swallow.
② Dissolve food and continuously remove food particles on the taste buds, so that you can continue to taste the taste of food.
③Clean and protect the mouth.
④ Antibacterial effect.
⑤ Digestion.
Advantages of saliva: The carbonates, phosphates and proteins contained in it can bring chemical protection to teeth; the amylase contained in it can help digestion; the ingredients can fight bacteria; it can clean the mouth ;Cancer and AIDS can be detected by testing saliva.
Disadvantages of saliva: Saliva can also spread diseases through the human body carrying germs.
The health-preserving function of saliva has been valued and affirmed since ancient times. When the ancients first started writing, they used the word "living" as the word "living", which means that the water (saliva) beside the tongue can maintain the health of the human body. vitality. In order to emphasize its importance, medical scientists and health experts of the past dynasties named it "Jinjin", "Yuye", "Qiongjiang", "Ganlu", "Jade Liquor", "Huachi Shenshui" and other good names.
"Compendium of Materia Medica" records: "When a person is sick, the heart and kidneys are not communicating, and the kidney water is not flowing, so the body fluid is dry and the true qi is depleted." Li Shizhen pointed out: "The body fluid is the essence of the person. change.
"Ancient medical scientists believe that "Jin" is transformed from "Jing". When the essence is abundant, the kidney water rises and turns into body fluid. The body fluid is then swallowed to moisten the heart and prevent excessive heart fire. Water and fire complement each other and Yin balances Yang. It is secretly called "self-drinking longevity wine". Therefore, ancient people often used swallowing body fluid to cure diseases, strengthen the body, and prolong life.
Normal people secrete about 1000 to 1500 ml of saliva every day, which is the third largest body fluid in the mouth. A mixture of liquids secreted by the larger salivary glands, the parotid glands, the subpalatal glands and the sublingual glands. Normal saliva is colorless, odorless, and nearly neutral (pH value 6.6 to 7.1). The main component is water, accounting for 98.5% to 99%. , the rest are salts containing sodium, potassium, calcium, chlorine, sulfur and other ions, as well as amylase, lysozyme, mucoprotein, etc.
The basic physiological function of saliva is to moisten and clean the oral cavity, and eliminate tooth decay. Bacteria that remove dirt, dissolve substances harmful to teeth, soften food for easier swallowing, and break down starch, which has a digestive effect. If the amylase in saliva is weakened, it will affect the digestion of food and fail to protect the gastric mucosa from gastric acid. Damage can easily lead to gastrointestinal inflammation or ulcers.
Generally, people with strong physiques have relatively abundant saliva secretion. Elderly and frail people often have dry mouth, dry skin, and declining physical strength. , tinnitus, hard of hearing, facial loss of luster, constipation and other conditions, the use of saliva swallowing regimen can regain youth, resist aging and delay aging.
Rejuvenate youth, strengthen muscles and bones. There is an ancient saying: "Qi." It is a life-sustaining zhi, and Jin is a life-prolonging medicine. "The most attractive substance contained in saliva is the parotid gland hormone discovered by the Japanese physician Chisaburo Ogata. This hormone is secreted by the parotid gland. Many scholars believe that it is a "rejuvenating" hormone. Parotid gland hormone can Increase the vitality of muscles, blood vessels, connective tissue, bones, cartilage and teeth, especially strengthen the elasticity of blood vessels and improve the vitality of connective tissue. As long as the parotid gland hormone is filled, the functions of blood vessels, skin interstitium and connective tissue will be strengthened, and the skin's elasticity will be enhanced. The elasticity can be maintained. However, when people reach middle age, the parotid glands begin to shrink, and the hormones they secrete gradually decrease. Regular swallowing can delay the atrophy of the parotid glands and promote healing<. /p>
Saliva has the functions of anti-inflammatory, analgesic, hemostasis, sterilization and detoxification. People always like to apply a little saliva to heal and relieve pain when their skin is scratched in daily life. After the tip of the tongue and lips are bitten, the wound healing speed is often slow. Much faster than other parts; after animals are injured, they also often use their tongues to lick the wounds. What is even more incredible is that there is a peculiar dermatology hospital in Bavaria, Germany, that uses cows' tongues to lick patients' skin to treat neurodermatitis. and scalp ringworm, etc., and it is also very effective; scientists in the former Soviet Union used "saliva therapy" to unexpectedly succeed in treating some stubborn skin diseases that have not been cured for a long time. This series of mysterious effects was finally revealed by Dr. Cohen from the United States, who discovered that saliva contains There are two precious proteins: epidermal growth factor (EGF) and nerve growth factor (KGF). The former is a polypeptide composed of 53 amino acids, which can promote cell proliferation and differentiation, replacing aging and dead cells with new and vibrant cells. It has special effects such as accelerating the healing of skin and mucous membrane wounds and preventing ulcers; the latter has the function of promoting nerve growth, which can make the broken nerve endings grow and extend, "weld" the severed nerves, and restore the injured skin to feeling as soon as possible. and motor function. Cohen won the 1986 Nobel Prize in Physiology and Medicine for this.
Smooth skin and beautiful appearance
Saliva is also very useful in beauty, skin care, and beauty. As recorded in "Essentials of Age Cultivation" written by Leng Qian, a health-preserving expert in the Ming Dynasty: "A haggard appearance is caused by excessive thinking and careless work. Sit quietly every morning, close your eyes and concentrate, preserve your spiritual energy, and invigorate the gallbladder from the inside to the outside. Rub your hands to heat it, brush your face seven times, still rinse your face with fluid, and rub it several times. According to this method, after half a month, the skin will be smooth and smooth, and the appearance will be more radiant than usual. ”
Medical research has found that saliva is produced from plasma. Some of its components are the best nutrients for skin cells and will not cause skin allergies; saliva contains a variety of biological enzymes, such as bacteriolysis Enzymes, amylase, etc. are weakly alkaline and can eliminate oil secreted by the facial skin, kill some bacteria on the face, and prevent facial boils and spots. Therefore, applying saliva to the face often has unexpected effects.
Saliva is saliva secreted by the salivary glands around the mouth. It lubricates the oral mucosa, dissolves food, and facilitates swallowing. It also contains amylase and lysozyme, which can aid digestion and have a bactericidal effect. It is a physiological substance secreted by the human body itself. [1]
The role of saliva
①Moistens the mouth and food to facilitate speaking and swallowing.
②Dissolve. Food and constantly remove food particles from the taste buds, so that you can continue to taste the food.
③Clean and protect the mouth.
⑤Digestion.
Advantages of saliva: The carbonates, phosphates and proteins contained in it can bring chemical protection to teeth; the amylase contained in it can help digestion; the ingredients can resist Bacteria; can clean the mouth; cancer and AIDS can be detected by testing saliva
Disadvantages of saliva: Saliva can also spread diseases through the human body carrying germs.
The health-preserving function of saliva has been valued and affirmed since ancient times. When the ancients first started writing, they used the word "living" as the word "living", which means that the water (saliva) beside the tongue can maintain the health of the human body. vitality. In order to emphasize its importance, medical scientists and health experts of the past dynasties named it "Jinjin", "Yuye", "Qiongjiang", "Ganlu", "Jade Liquor", "Huachi Shenshui" and other good names.
"Compendium of Materia Medica" records: "When a person is sick, the heart and kidneys are not communicating, and the kidney water is not flowing, so the body fluid is dry and the true qi is depleted." Li Shizhen pointed out: "The body fluid is the essence of the person. "Ancient medical scientists believe that "Jin" is transformed by "Jing". When the essence is abundant, the kidney water rises and turns into body fluid. When the body fluid is swallowed, it can moisten the heart and prevent excessive heart fire. Water and fire complement each other. Yin Ping Yang secretly calls it "self-drinking the wine of longevity". Therefore, ancient people often used swallowing body fluids to cure diseases, strengthen the body, and prolong life.
Normal people secrete about 1000 to 1500 ml of saliva every day, which is a mixture of liquid secreted by the three pairs of larger salivary glands in the oral cavity, the parotid gland, the subpalatal gland and the sublingual gland. Normal saliva is colorless, odorless, and nearly neutral (pH value 6.6 to 7.1). The main component is water, accounting for 98.5% to 99%. The rest is salts containing sodium, potassium, calcium, chlorine, sulfur and other ions, as well as starch. Enzymes, lysozyme, mucin, etc.
The basic physiological functions of saliva are to moisten and clean the mouth, eliminate bacteria that produce tartar, dissolve substances harmful to teeth, soften food for easier swallowing, break down starch, and have a digestive effect. If the amylase in saliva is weakened, it will affect the digestion of food and easily lead to gastrointestinal inflammation or ulcers because it cannot protect the gastric mucosa from damage by gastric acid.
Generally, people with strong physiques have relatively abundant saliva secretion. The elderly and frail people often suffer from insufficient saliva secretion, dry mouth and tongue, dry skin, declining physical strength, tinnitus and hearing loss, loss of facial luster, constipation, etc. By using the saliva-swallowing regimen, you can regain your youth and resist aging. old.
Rejuvenate youth, strengthen muscles and bones. There is an ancient saying: "Qi is a life-sustaining medicine, and body fluid is a life-prolonging medicine." The most attractive substance contained in saliva was first recommended by the Japanese physician Ogata. Parotid gland hormone discovered by Chisaburo. This hormone is secreted by the parotid gland, and many scholars believe it is the "rejuvenating" hormone. Parotid gland hormone can increase the vitality of muscles, blood vessels, connective tissue, bones, cartilage and teeth. It can especially strengthen the elasticity of blood vessels and improve the vitality of connective tissue. As long as the parotid gland hormone is sufficient, the functions of blood vessels, skin interstitium, and connective tissue will be strengthened, and the elasticity of the skin can be maintained. However, after a person reaches middle age, the parotid glands begin to shrink and the hormones they secrete gradually decrease. Regular pharyngeal movements can delay the atrophy of the parotid gland.
Repair wounds and promote healing
Saliva has the functions of anti-inflammatory, analgesic, hemostasis, sterilization and detoxification. People always like to apply a little saliva to heal wounds and relieve pain when they scratch their skin in daily life; After being bitten on the tip of the tongue and lips, the wound often heals much faster than other parts. After animals are injured, the tongue is also often used to lick the wound. What’s even more incredible is that there is a peculiar dermatology hospital in Bavaria, Germany, which uses cow’s tongue to lick patients’ skin to treat neurodermatitis and scalp tinea, and it is very effective; scientists from the former Soviet Union used “saliva therapy” It has also been unexpectedly successful in treating some stubborn skin diseases that have not been cured for a long time. This series of mysterious effects was finally revealed by Dr. Cohen from the United States. He discovered that there are two precious proteins in saliva: epidermal growth factor (EGF) and nerve growth factor (KGF). The former is a polypeptide composed of 53 amino acids, which can promote cell proliferation and differentiation, replace aging and dead cells with new and vibrant cells, and has special effects such as accelerating the healing of skin and mucous membrane wounds and preventing ulcers; the latter can promote nerve growth. Its function can make the broken nerve endings grow and extend, and "weld" the severed nerves together, so that the injured skin can recover its sensory and motor functions as soon as possible. Cohen won the 1986 Nobel Prize in Physiology or Medicine for this work.
Smooth skin and pleasing appearance
Saliva is also very useful in skin care, skin care and beauty. As recorded in "Essentials of Age Cultivation" written by Leng Qian, a health-preserving expert in the Ming Dynasty: "A haggard appearance is caused by excessive thinking and careless work. Sit quietly every morning, close your eyes and concentrate, preserve your spirit, and stimulate your gallbladder from the inside out. Rub it with both hands. If it is hot, brush the face seven times, still rinse the face with fluid, and rub it several times. If you follow this method for half a month, your skin will be smoother and your face will be more radiant."
Medical research. It was discovered that saliva is produced from plasma. Some of these ingredients are the best nutrients for skin cells and will not cause skin allergies; saliva contains a variety of biological enzymes, such as lysozyme, amylase, etc., which are weakly alkaline and can eliminate oil secreted by facial skin and kill Kill some bacteria on the face and avoid boils and spots on the face. Therefore, applying saliva to the face often has unexpected effects.
Human saliva contains many substances that are beneficial to human health. Swallowing your own saliva every day can cure diseases and prolong life.
Saliva contains amylase, lysozyme, peroxidase, mucus protein, phospholipids, phosphoprotein amino acids, sodium, potassium, calcium, magnesium and other substances. These substances have the functions of digesting food, sterilizing, antibacterial, and protecting the gastric mucosa.
Saliva contains a hormone that keeps people young. It can strengthen the vitality of human muscles, myotubes, bones, cartilage and teeth. Saliva has a strong disinfection and sterilization ability and can effectively kill carcinogens in food.
Saliva also contains a special salivary growth factor, which can promote the growth and division of human cells, shorten the healing time of skin wounds, and protect the elasticity of the skin.
Saliva is known as "Golden Rules and Jade Liquid" in traditional Chinese medicine, also known as "Water of Huachi". Some ancient health practitioners believed that as long as they consciously swallowed the fluid produced under the tongue and persisted all year round, they could increase vitality and prolong life.
Modern medicine once believed that saliva was just a digestive juice secreted by the exocrine glands in the mouth. Its function is to aid digestion and stir moist food. However, research results in recent years have shown that although saliva is not a fairy water for longevity, it is not just a digestive juice, it also has many functions.
How do you feel about drooling in spring?
The first is immune function. While studying AIDS, Professor Shimizu Fumio of Tohoku University in Japan collected saliva samples from 22 healthy people aged 2 to 40 years old, mixed each with 0.5 ml of HIV-containing saliva, and incubated it at 37C for one hour. It was found that 17 of the samples had 99% of AIDS has been destroyed; further research found that this is the detoxification effect of salivary lysozyme. It is not only the nemesis of HIV, but also kills some pathogenic bacteria that enter the mouth.
How do you feel about drooling in spring?
Secondly, it has recently been discovered that saliva can also convert a variety of carcinogens into harmless substances. Professor Nishioka Kazu from Japan believes that if food can be chewed in the mouth for more than 30 seconds, 13 enzymes such as peroxidase and hydroperoxide in saliva can basically eliminate nitroso compounds and aflatoxin that may be present in food. Toxins and other trace carcinogens. It can be seen that saliva is a unique anti-cancer agent in the human body.
Thirdly, salivary glands can also produce a variety of biologically active substances to participate in regulating life activities. For example, a nerve growth factor secreted by salivary glands has high efficiency in stimulating the growth and differentiation of sensory and sympathetic nerves; there is a protein called epithelial growth factor in saliva, which can promote the growth of epidermis and epithelial tissue. In the past, folk methods of applying saliva to the injured area were commonly used to treat injuries. This is the unintentional use of saliva to sterilize and promote wound growth and healing. Epithelial growth factors have now been formulated into drugs to treat a variety of body surface injuries. The most noteworthy thing is that the parotid gland can secrete a hormone that regulates blood sugar. It has been confirmed that the parotid gland is an important tissue besides the pancreas that can increase insulin levels in the blood. Some experts are optimistic that if they find a way to strengthen the function of the parotid gland, they may find another way to treat diabetes.
Finally, a large number of methods have been invented to monitor health status and diagnose diseases by measuring the composition of saliva and its changes. Since the composition of saliva is very similar to that of serum, changes in saliva composition also reflect disease and health conditions. Since the sampling of saliva test does not require blood drawing, it is convenient and painless, so it is very popular among doctors and patients. For example, saliva samples can now be used instead of blood samples to detect AIDS and HIV carriers. Salivary lysobacterium content can extremely sensitively reflect the quality of the living environment. After living in a room with poor hygiene for 15 days, salivary lysozyme dropped to 1/4 of the normal level. The carbon dioxide content of the saliva of patients with intestinal roundworms increases and the acidity increases. It is more hygienic and convenient to detect ascariasis than to check the stool. Measuring the sodium-potassium ratio in saliva can identify sympathetic or parasympathetic hypertonia. The lipokine-releasing enzyme in the saliva of patients with hypertension and renal insufficiency increases; the amylase in the saliva of patients with mumps and gallbladder fibrosis increases, etc.
How do you feel like drooling in spring?
In short, the magical effect of saliva has great potential for research and utilization.