Green Tea Before Bed
The green tea is prepared from the leaves of Camellia sinensis. It is the second most to drink in the world after the water. Three types of tea are prepared from the leaves of this plant:
- The Green Tea: It is drying and steaming from fresh tea leaves without oxidation of the multi-phenol compounds in which it is discouraged by the enzyme activity oxidized by heat. Green tea is the most beneficial for human health among of these three species. Green tea is produced in China and Japan, where about 2.5 million tons of green tea are produced annually. Approximately 20-22% of the tea produced in the world, and also consumed in Asian countries significantly. While European and American countries rely more on black tea.
- Oolong Tea: which is prepared by partial fermentation of tea leaves before drying.
- The Black & Red Tea: which is brought by the fermentation of the tea leaf, fully fermentation before drying and steaming.
Green Tea Benefits and Side Effects
Benefits Of Green Tea Before Bed:
Green tea before bed is beneficial to digest the dinner. There is no scientific evidence of a preference to take it at a certain time, but many experts prefer green tea before bed. It is a time of rest, which gives the person a pleasure and relaxation. Although taking green tea before bed also increase the mental activity. Many people believe that drinking green tea before bed specifically helps to increase metabolism, weight loss, and detoxification. Similarly, drinking green tea with non-heme iron sources also reduces its absorption so drinking green tea before bed can help to avoid this effect.
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Green tea was used in ancient Chinese medicine to treat headaches, body aches, digestive problems, depression, and detoxification, as a stimulant and as a prescription for prolonging life. The health benefits of green tea are mainly attributed to caffeine, theophylline and volatile oils, especially polyphenols.
Green tea before bed also increases mental activity and increases the strength of heart contractions and the relaxation of blood vessels. It works on the production of urine more than caffeine, and the relaxation of the bronchial muscle and stimulates breathing. As for the volatile oils found in green tea, it is advisable not to prolong the duration of soaking tea so as not to lose this oil, green tea has gained a great health attention because of its content of polyphenols and its role in the body as strong antioxidants. Green tea before bed prevents the genetic changes, fighting diabetes, resisting bacteria, infections, and cholesterol. It has also found benefits for oral health such as; protection from tooth decay, periodontal disease, and tooth fall.
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Green tea is a rich dietary source of antioxidants. It contains polyphenols, specifically catechins, gallic acid, and contains carotenoids, tocopherols (vitamin E), ascorbic acid (vitamin C), minerals such as chromium, manganese, selenium, and phytochemicals. Several studies have shown an increase in the level of antioxidants in blood plasma after the average intake of green tea and found that the high capacity of oxidation resistance in the blood caused by green tea and it also reduces the oxidative damage in DNA and lipids (fat).
Green Tea and Cancer:
Green tea also reduced the toxicity of genes caused by smoking and increased the activity of enzymes that rid the body of carcinogenic chemicals.
Different researchers have found a link between human consumption of green tea and the prevention of many cancers, such as lung cancer, colon cancer, esophageal cancer, oral cancer, stomach cancer, small intestine cancer, kidney cancer and pancreatic cancer. Several experimental types of researches on animals have also found the ability of green tea to prevent the formation of skin cancer, lung cancer, oral cancer, esophageal cancer, stomach cancer, liver cancer, kidney cancer, prostate cancer and other organs.
Improve oral health and prevent tooth decay and fall and periodontal disease:
Oral diseases such as tooth decay and gum disease affect the overall health. Many studies have found that drinking non-sugar-based green tea reduces the risk of tooth decay. It has also been found to reduce dental caries even with sugar in the diet.
Controlling body weight and fighting obesity:
Many researchers suggest a role for catechins in controlling the body weight. In a study on mice, researchers found that caffeine and thiamine improve the effects of polyphenols on body weight and fat accumulation and that green tea before bed can reduce the digestion and absorption of fat.
The study found that drinking green tea catechins, caffeine and calcium will burn the 4.6% energy on daily basis. Drinking green tea, oolong tea and black tea will helpful to reduce the body weight, triglyceride, total cholesterol, and bad cholesterol (LDL) in the blood.
Other Benefits Of Green Tea Before Bed:
- Green tea fighting against the influenza virus, especially in its early stages.
- Improve bone density and reduce the risk of fractures, especially pelvic fractures.
- Strengthening the immune system because of its role in protection from oxidizing materials and free radicals.
- The Green Tea is also useful to stop bleeding.
- Green tea increases the amount of water, as well as a good source of many important vitamins and minerals for human health.
- Green tea also used in the food industry, cosmetic materials, and pharmaceutical preparations due to its high-level antioxidant content that makes it a natural and effective preservative.
The Green Tea Side Effects:
Doctors recommend that do not drink tea before bed because it contains nervous system stimulants that can lead to insomnia. They also warned to heart patients because it will increase your heart rate.
High-dose green tea has many side effects, but it is in the case of very large amounts of green tea. These effects include:
- Toxicity of liver cells due to green tea catechins.
- Oxidative damage in DNA
- Drinking more than 5 cups of green tea can lead to many side effects, such as headaches, stress, sleep problems, vomiting, nausea, diarrhea, irregular heartbeat, stomach burning, dizziness, tinnitus, and confusion.
Avoided green tea if:
- Severe heart disease.
- In the case of pregnancy and lactation, do not to drink more than 1 to 2 cup a day.
- Green tea contains aluminum that can affect kidney failure patients.
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