Function of Jujube: As a traditional Chinese medicine, it has a history of more than 2,000 years. It is mainly used to treat deficiency of middle qi, weakness of spleen and stomach, listlessness, loss of appetite, blood deficiency and sallow, and female impatience. In recent years, pharmacological studies have found that jujube contains many bioactive substances, such as jujube polysaccharide, flavonoids, saponins, triterpenoids, alkaloids, cAMP, cGMP and so on. It has many health care and therapeutic effects on human body. ■ cAMP in anti-tumor jujube is involved in many physiological and biochemical processes such as cell division and differentiation, morphogenesis, glycogen and fat decomposition, steroid production, etc. It can be used for gene transcription and affect the synthesis of protein. More importantly, cAMP is effective in treating various tumors, which can effectively prevent the formation of nitrite in human body, thus inhibiting the formation and proliferation of cancer cells, and even transforming cancer cells into normal cells. In addition, triterpenoids rich in jujube have the effect of inhibiting cancer cells, especially maslinic acid, which is the most effective, even surpassing the commonly used anticancer drug fluorouracil. ■ Vitamin C rich in antioxidant red dates has strong antioxidant activity, promotes collagen synthesis, and can participate in redox reactions of tissues and cells, which is related to the metabolism of various substances in the body. Adequate vitamin C can promote growth and development, enhance physical strength and reduce fatigue. ■ The content of vitamin P for lowering blood pressure and cholesterol in red dates is the highest among all fruits and vegetables. It has the functions of maintaining capillary permeability and improving microcirculation, thus preventing arteriosclerosis and promoting the accumulation of vitamin C in human body. In addition, the soaps contained in jujube have the functions of regulating human metabolism, enhancing immunity, anti-inflammatory, anti-allergic, reducing blood sugar and cholesterol content. Rutin has the effects of protecting the patency of capillaries and preventing the increase of fragility of blood vessel walls, and has therapeutic effects on diseases such as hypertension and atherosclerosis. Flavonoids can be used to treat and prevent hypertension and arteriosclerosis. ■ Fructose, glucose, oligosaccharide and acidic polysaccharide in Hugan jujube participate in protecting liver. Jujube can significantly increase serum total protein and albumin in rabbits with carbon tetrachloride liver injury. At the same time, jujube can improve the phagocytosis of monocytes in the body, protect the liver and enhance physical strength; Vitamin C and cAMP in jujube can reduce the damage of chemicals to the liver, promote the synthesis of protein, and increase the total protein content in serum. Jujube can be used as an adjuvant therapy for chronic hepatitis and early cirrhosis in clinic. ■ Improving immunity Jujube polysaccharide is an important active substance in jujube, which has obvious complement activity, promotes lymphocyte proliferation and improves immunity. ■ Flavonoids in jujube can prevent and treat cerebral ischemia and protect the ultrastructure damage of brain tissue caused by cerebral ischemia. ■ Anti-allergic jujube can treat allergic purpura. This is mainly because the content of cAMP in immune cells increases after the human body ingests enough cAMP, which will inhibit the immune response and achieve the anti-allergic effect; Ethyl -d- furanoside derivatives in jujube have antagonistic effects on 5- hydroxytryptamine and histamine, so they can be antiallergic. ■ Prevention and treatment of cardiovascular diseases Jujube is rich in vitamin C and vitamin P, which is very beneficial for improving capillaries, maintaining the elasticity of blood vessel walls and resisting atherosclerosis; Jujube contains cAMP, and its pharmacological effects are: improving human microcirculation, dilating coronary artery, increasing blood supply to brain and heart, slowing heart rhythm, reducing myocardial oxygen consumption and improving ischemic myocardial metabolism, so it can prevent and treat cardiovascular and cerebrovascular diseases. ■ Prevention and treatment of osteoporosis and anemia Middle-aged and elderly people often suffer from osteoporosis, and adolescents and women at the peak of growth and development are prone to anemia. Jujube is rich in calcium and iron, which has an ideal therapeutic effect on them, and its effect is usually incomparable to drugs. Jujube also has a good nourishing effect on people who are weak after illness. In addition, red dates contain vitamin E, which has antioxidant and anti-aging effects. Jujube contains dammarane saponin similar to ginseng, which has the effects of enhancing human endurance and anti-fatigue. Jujube can also regulate and control the symptoms of beauty beauty, hot flashes, sweating and emotional instability in female menopause. Jujube, also known as jujube, dried jujube and jujube, originated in China and has been planted in China for more than 4,000 years. It has been listed as one of the "five fruits" (peach, plum, plum, apricot and jujube) since ancient times. Jujube is rich in protein, fat, sugar, carotene, B vitamins, vitamin C, vitamin P, calcium, phosphorus, iron and adenosine cyclophosphate. Among them, the content of vitamin C ranks among the best in fruits and has the reputation of vitamin king. According to a foreign clinical study, patients who eat jujube continuously recover more than three times faster than those who simply take vitamin medicine. Cyclic adenosine monophosphate (cAMP) contained in jujube is an essential component of energy metabolism of human cells, which can enhance muscle strength, relieve fatigue, dilate blood vessels, increase myocardial contractility and improve myocardial nutrition, and has a good effect on preventing and treating cardiovascular diseases. According to the theory of traditional Chinese medicine, jujube has the functions of tonifying deficiency and benefiting qi, nourishing blood and calming the nerves, invigorating spleen and regulating stomach, and is a good health care nutrient for patients with spleen and stomach weakness, deficiency of qi and blood, listlessness, insomnia and dreaminess. Jujube has a good effect on chronic hepatitis, liver cirrhosis, anemia, allergic purpura and other diseases; Jujube contains triterpenoids and cyclic adenosine monophosphate, which has strong anticancer and antiallergic effects. The famous jujube varieties in China are Wufo jujube, Shandong jujube, Sihong jujube, Jinsixiaozao jujube, Zanhuang jujube, Hami jujube and Xinzheng jujube.