Green tea is obtained from an evergreen plant. The drink has been known in China since 2700 BC. Then it was used as a medicine. In the 3rd century AD, the era of tea production and processing began. He became available to both the rich and the poor.

Green tea is produced in factories in China and grown in Japan, China, Malaysia and Indonesia.

Composition and calorie content of green tea

Green tea contains antioxidants, vitamins A, D, E, C, B, H and K and minerals.

The calorie content of a cup of green tea without sugar is 5-7 kcal. The drink is ideal for weight loss.

Green tea is good for heart, eye and bone health. It is drunk for weight loss and type 2 diabetes. The benefits of green tea will appear if you consume 3 cups of the drink a day.

Green tea neutralizes the effects of harmful fats, bacteria and viruses, such as staphylococcus aureus and hepatitis B.

For bones

Green tea relieves pain and inflammation in arthritis.

The drink strengthens bones and reduces the risk of osteoporosis.

The caffeine in green tea improves exercise performance and reduces fatigue.

For the heart and blood vessels

Green tea has been shown to reduce the risk of heart attack and stroke.

People who drink green tea daily have a 31% lower risk of heart disease compared to those who do not.

The drink carries out the prevention of atherosclerosis and thrombosis. It improves blood flow and relaxes the arteries.

Drinking 3 cups of green tea a day will reduce your risk of stroke by 21%.

For nerves

Green tea improves mental alertness and slows down brain degeneration. The drink soothes and relaxes, but at the same time increases alertness.

The theanine in tea sends a “feel good” signal to the brain, improving memory, mood and concentration.

Green tea is beneficial for treating mental disorders, including dementia. The drink prevents nerve damage and memory loss that leads to Alzheimer's disease.

In a study presented at the International Conference on Alzheimer's and Parkinson's in 2015, those who drank green tea 1-6 days a week suffered less depression than those who did not. In addition, the researchers found that tea drinkers hardly suffered from dementia. The polyphenols in tea are beneficial for the prevention and treatment of Alzheimer's and Parkinson's.

For eyes

Catechins protect the body from glaucoma and eye diseases.

For the digestive tract

Green tea improves digestion and protects the liver from obesity.

For teeth and gums

The drink improves periodontal health, reduces inflammation and inhibits the growth of bacteria in the oral cavity.

Green tea protects against bad breath.

A study found that people who drink at least 6 cups of green tea a day had a 33% lower risk of developing type 2 diabetes than those who drink 1 cup a week.

For the kidneys and bladder

The caffeine in green tea acts as a mild diuretic.

For skin

Organic green tea ointment is useful for treating warts that are caused by the human papillomavirus. The researchers selected over 500 adults with the disease. After treatment, the warts disappeared in 57% of patients.

For immunity

The polyphenols in tea protect against cancer. They reduce the risk of developing breast, colon, lung, ovarian, and prostate cancer.

Women who drank more than 3 cups of green tea a day reduced their risk of breast cancer recurrence because polyphenols stop the production and spread of cancer cells and the growth of blood vessels that feed tumors. Green tea enhances the effect of chemotherapy.

Green tea fights cancer inflammation. It blocks the growth of the tumor.

Probably everyone knows about the healing properties of green tea. And many are sure that this delicious drink is completely harmless, because it has so many health benefits. But there are hidden dangers in this healthy drink that will be discussed: the harm of green tea.

Based on research conducted by the UK Tea Council (UK Tea Council), it has been found that a healthy drink, if consumed excessively, can cause side effects to human health.

What harm can green tea do?

The harm of green tea is expressed in its side effects, which experts associate with the content of caffeine and tannins (tannin and catechin).

Meanwhile, tea has tremendous health benefits. Read, Green tea prolongs life.

Tannins. In their effect, tannins contained in tea leaves are similar to vitamin P; they strengthen the walls of blood vessels and capillaries. The tea itself is given flavor and astringency. But their large concentration in tea irritates the walls of the stomach, they slow down the absorption and assimilation of certain trace elements and can disrupt the functioning of the liver and kidneys.

Caffeine- a purine alkaloid, is a powerful stimulant of the human nervous system, which has a number of positive effects on health. But an overdose of an alkaloid causes disturbances in the functioning of the heart, stomach, intestines and other body systems.

With an excess of even the most useful foodstuffs, the body is in danger, because all products contain chemical elements and biologically active substances that the body cannot absorb indefinitely. Their excessive exposure takes the body out of the comfort zone, causing malfunctions and disruptions in the functioning of organs and systems.

Side effects or why follow the norm

Scientists have found a number of side effects that occur more often with an overdose of green tea, which is harmful for both women and men.

Changes the acidity of the stomach

Green tea alters the acidity of the gastric juice, raising it above normal, which irritates the walls of the stomach and can provoke heartburn. To this conclusion scientists have come, studies have shown that tea stimulates the production of stomach acid.

To neutralize its effect on the walls of the stomach, sugar can be added to tea, which, again, is not welcomed by everyone. It is better to drink the drink after meals or between meals, when the stomach has not yet been freed from food.

People with high stomach acidity and peptic ulcer disease need to be more careful when using this drink.

Reduces iron absorption

Since tea is drunk only after a meal, it interacts with substances contained in food. It has been found that caffeine, or rather theine (the type that is found in tea, differs in that it is absorbed only in the intestines), reduces the absorption of iron by 25%. This applies more to the non-heme gland found in eggs, dairy products and plant products.

But this harmful effect on the body, fortunately, can be neutralized by adding fresh lemon juice to a cup of tea or eating vegetables and fruits saturated with vitamin C first (greens from a garden with dark green leaves, tomatoes, broccoli, lemon, currants) ...

For women, it is important to observe moderation in tea drinking. Often, they already suffer from anemia and iron deficiency, and high concentrations of tea aggravate this situation. During pregnancy and breastfeeding, the concentration of caffeine can affect the development of the fetus and the health of the baby.

Promotes Chronic Headaches

If a person constantly consumes drinks containing caffeine, the body gradually gets used to it. And with a lack of this "doping" he responds with a prolonged headache. This is a kind of caffeine addiction that causes a kind of withdrawal when it is insufficiently supplied.

Additional intake of drinks solves this problem after 25-30 minutes, but is it worth it to accustom your body to such an addiction? If headaches appear on the background of a lack of caffeine doping, it is better to completely abandon such drinks. After all, these symptoms will gradually increase.

Sometimes people have chronic head pains that turn into migraine headaches. Studying such cases, scientists have found a connection between similar pain with the use of drinks (in large doses) containing caffeine.

Causes anxiety and nervousness, interferes with restful sleep

All these symptoms are more pronounced in sensitive people with an overdose. It's all about the substance xanthine, which is a purine base and a precursor of uric acid. Its derivative is caffeine.

Its side effect on the human body is the ability to block sleep hormones in the brain, and it also activates the production of adrenaline.

Increases heart rate and increases blood pressure

Sometimes there is a rapid contraction of the muscles of the heart (palpitations) or abnormal contraction, with a violation of the rhythm. As a rule, such failures and violations pass quickly. And if such cases occur, then it is better to talk to your doctor, undergo an examination and identify the true cause of the deviations.

If a person has an increased sensitivity to caffeine and its derivatives, then it is better to refuse drinks containing it in their composition.

You should not get carried away by drinks and people with high blood pressure, the fact of the effect of caffeine on increasing blood pressure is well known.

Causes diarrhea

This feature directly depends on the individual sensitivity of the organism. In the lining of the mucous membrane of the digestive organs, a huge number of neurons (nerve cells and endings) are concentrated. Therefore, the digestive organs are very sensitive to all chemicals that come with food.

And drinks containing caffeine are rich in organic acids (citric, succinic, malic, oxalic), which stimulate the production of bile. At some point, this plays a positive role.

But accumulations of bile, in turn, trigger mechanisms in response to the effects of biologically active substances, which make them run to the toilet. For those for whom caffeinated drinks have a laxative effect, it is best to avoid them.

Promotes heartburn and vomiting

Medical experts acknowledge the fact that caffeinated drinks can cause heartburn. This is explained by the fact that when the mucous membrane is irritated with caffeine derivatives, the production of hydrochloric acid increases.

And since the active substances also have vasoconstrictor abilities, this to some extent disrupts the work of the sphincter, which does not work on time and passes hydrochloric acid into the esophagus.

Do not drink the drink hot, as it irritates the stomach lining more strongly and do not work in an incline after drinking a cup of tea.

Tea overdose sometimes causes nausea, which turns into vomiting, which is rare. This is also associated with a change in the acidity of the stomach and the irritating effect of active substances on the vomiting center of the brain.

Possibly dizziness, ringing in the ears

Caffeine derivatives have insidious properties. In small doses, they increase blood pressure, cause vasospasm, which can lead to dizziness.

In case of overdose, on the contrary. lower the pressure. And again they cause weakness and dizziness. Ringing in the ears is possible, especially with increased pressure.

It causes tremors of the limbs and a lack of calcium in the body

Can I drink iced tea

Experts do not recommend drinking too hot tea or cold tea. Hot tea can burn you, and frequent consumption of hot drinks causes a mutation of the epithelial cells lining the throat, leading to the formation of a malignant tumor.

Cold tea, after standing, quickly oxidizes, which leads to the destruction of the vitamins, minerals and active biological substances contained in it. There will not be much harm from this, just thinking about the usefulness, you will drink a pacifier. But in cold tea, a favorable environment for the reproduction of bacteria is still created.

The biologically active substances in green tea that provide benefits can be potentially hazardous to health if drunk in excessive amounts. The harm of green tea to the body lies only in this reason. If you follow the rule of the golden mean, then all problems will go away.

Reasonable use of tea converts the caffeine and tannin contained in it into friendly substances that only bring health.

• And in this article, read about the benefits:

Drink your tea wisely and be healthy!

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The positive effect of green tea on the human body has been known for a long time. But why and how this happens, not everyone knows. And the thing is that it contains up to 300 chemical compounds. The most important of these are theine (tea caffeine), theophylline, and theobromine.

In addition to these substances, the drink contains tannin, a tannin that helps to improve the digestive process and normalize the gastrointestinal tract. Tannin also removes radioactive substances from the body and helps get rid of germs.

Also, the effect of green tea on the body explains the presence of catechins in it, i.e. substances with antimicrobial properties. From 16 to 25 percent of the volume of this useful product is occupied by proteins and amino acids. The nutritional effect on the body of tea leaves is so great that it is not inferior to legumes. Green tea contains 17 amino acids, of which it is necessary to isolate the glutamic amino acid, which has a positive effect on the nervous system.

How does green tea affect the human body?

The composition of the drink includes minerals, which include fluoride, which protects teeth from caries, phosphorus, which is necessary for the normal functioning of the nervous system, and iodine, which has an anti-sclerotic effect. Green tea also contains organic acids: malic, citric, succinic and oxalic, due to which the value of the product is significantly increased.

It is an excellent remedy for relieving headaches, strengthening internal reserves and improving visual function. In addition, it affects the entire body, increasing its adaptive functions and resistance to various diseases.

Green tea has many health benefits. It relieves fatigue, gives strength and makes us more efficient. The drink contains caffeine, which acts in a complex together with other alkaloids, which makes the effect of tea on the body long and soft.

This product enhances the excitatory processes of the nervous system, dilates blood vessels and saturates them with oxygen. A person who drinks green tea increases resistance to infections and stress, he quickly remembers and assimilates new information.

Tea leaf is useful for respiratory diseases: bronchitis, tracheitis, pneumonia. Green tea works in such a way that relieves heat, expands the airways, increases ventilation of the lungs, sweat and urination.

In addition to these properties, this drink has a warming and disinfecting effect on the nasopharynx. Rinsing the nose with warm tea leaves for rhinitis and gargling with tonsillitis and tonsillitis are very effective. At high temperatures, never drink hot tea, as it puts stress on the heart and kidneys. If you are overcooled, green tea with honey can help prevent colds.

The best thirst-quenching drink during the heat is also green tea, due to its unique property when evaporating to remove more heat from the body than is contained in itself.

It has long been known about the effect of this drink on blood vessels. It expands them, lowering blood pressure at this time. Thanks to the studies of Japanese scientists, it became known that with regular consumption of green tea, patients with hypertension feel much better due to the fact that this product reduces blood pressure in the vessels by 10-20 percent.

To enhance the effect, the drink is drunk together with ascorbic acid. The tea leaf has a healing effect on the body of any person. It has a beneficial effect on the heart and strengthens the walls of the capillaries and blood vessels.

One cannot ignore the fact that green tea prevents the deposition of fats and lipids and even helps to get rid of already existing fatty deposits. The drink contains a lot of iron and potassium salts, and this contributes to the normalization of the function of the heart muscle. The activation of the spleen and liver is due to the catechins contained in tea. This makes this product so beneficial for stroke survivors.

Green tea is an excellent antiseptic and antibacterial agent. It contains a large amount of tannins that suppress the processes of putrefaction in the intestines, neutralize toxins and destroy pathogenic bacteria. It is necessary to choose high quality tea, since the effectiveness of its properties depends on it. A too strong drink is not recommended for people suffering from gastritis or ulcers, since in this case the acidity of the gastric juice may increase. Also, do not use it without measure, so as not to get calcium leaching.

With all this, green tea is on the list of the most useful foods, so it should be included in the daily diet of every person who monitors their health and wants to prolong their youth!

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Green tea is a drink with a rich thousand-year history. Its healing power was already known for several hundred years BC. Once upon a time, in general, it was used only for medicinal purposes, and by everyone - from the poor to the nobility, it was presented as a gift to the gods. But over time, it began to be used on a daily basis. A distinctive culture of leaf growing and cooking emerged, and consumption became an extraordinary ceremony.

A magical infusion of camellia leaves has been guarding the physical and mental (nervous) health of a person for thousands of years. The extraordinary power contained in it is capable of miracles.

Healing properties

How is green tea good for you? Its first targets are "fire organs". These are the names of the small intestine and heart in Chinese medicine.

The infusion accelerates the final breakdown of food in the small intestine. It helps to digest undigested, remove toxins. By the way, this organ is like a “stove”. It warms everything inside the human body. Problems with this peculiar stove lead to obesity, because a person is forced to save heat with the help of fat. Tea improves the functioning of the body, therefore, it helps to lose weight.

If consumed correctly, the drink will be good for the heart. The medical treatise says that it generates love and acceptance in this organ, contributing to the elimination of diseases. It is believed that it is these feelings that are responsible for a person's ability to resist colds, infections, viruses and stress. Whether or not the infusion fills with love, but it really improves the work of the main muscle. A healthy heart adjusts the entire body to the correct rhythm.

What else is green tea useful for?

• It contains caffeine, but not in its pure harmful form, but in such as theine. This substance also gives vigor, strength, energy, improves performance. But at the same time, theine acts much easier than caffeine and quickly leaves the body.
• This is a wonderful antimicrobial agent that is used even in the treatment of dysentery.
• It stimulates not only the work of the small intestine, but, in general, has a beneficial effect on the gastrointestinal tract. Improves the activity of every organ of this system.
• It is able to remove some serious elements of radiation, thereby saving a person from possible dangerous diseases. It protects against harmful radiation, neutralizing bad effects. Therefore, it is very good for those who work with a computer. It is also useful when, on duty, you have to constantly "hang" on your cell phone.
• Green tea is an antioxidant. With regular and correct use (and competent preparation), it preserves youth, health and beauty.
• Infusion is a prophylactic agent against diabetes mellitus (lowers sugar), increased fragility of bones, hypertension.
• It normalizes weight.
• Strengthens blood vessels, restoring the elasticity of tubular formations. It speeds up the cleansing processes, reduces the amount of bad cholesterol and protects against the onset of insidious atherosclerosis.
• Improves blood circulation.
• Relieves allergic manifestations.
• Stops the development of oncology.
• The drink contains vital vitamins, minerals and various elements.
• In terms of nutritional value, it is equal to legumes.
• The infusion has a healing effect on the nervous system. Accelerates the reaction to the world, increases vitality and concentration of attention. Relieves fatigue. It is an antidepressant. It happens that it brings insight by illuminating problems from a different angle so that a solution is easily found. Increases creativity.
• Improves vision.
• It is also diaphoretic, which reduces the tendency of the skin to irritate. In general, it has a great effect on the dermis, which makes it possible to use the beneficial properties of green tea for the production of cosmetics.
• Increases life expectancy.

The qualities and composition of the leaves have a beneficial effect on health. But besides, this valuable infusion has certain properties that make it useful and harmful separately for men and women.

Harmfulness and usefulness for women

Regardless of age, drinking tea gives a woman a lot. How is green tea useful for the fair sex?

Benefit

• Boil six tablespoons of leaves with boiling water (0.5 l.), Insist a little and pour into water.
• It is used in cosmetology, having the ability to soothe, relieve irritation, and rejuvenate the skin. This effect can be achieved not only by taking the drink directly with food, but also by using masks, creams and baths for self-preparation. For example, to tone up and renew the skin, you can prepare the following bath infusion:
• Diuretic, intestinal stimulating and diaphoretic properties, the ability to remove toxins and toxins, plus low calorie content makes it useful for losing weight.
• Infusion reduces the likelihood of breast cancer, and by 90%. This has been proven by ongoing research. And it more than halves the risk of other types of cancer.
• It minimizes the chance of a femoral neck fracture in older women.
• Let's go back to the cosmetic effect. It heals oily hair by rinsing it after washing. The mask from the tea leaves on the face eliminates the mesh of small vessels, has a tightening effect on the fading dermis. Ice from a strong infusion, if used regularly to wipe the face, improves the look, makes the skin noticeably younger.

How does tea work during gestation?

In this golden time, you think about every step. Therefore, many expectant mothers are worried about what should be consumed and what should not, so as not to harm the future baby.

Of course, there are doubts about the usefulness of the drink for women during this period. The presence of caffeine in the leaves raises concerns. And also the fact that the infusion interferes with the absorption of folic acid, which is so important during gestation, which is responsible for the proper development of the fetus. But it should be understood that it all depends on the preparation and the amount drunk per day. If it is illiterate to do it, and besides, "slurp" it all day, then, of course, it will only bring harm to women, especially pregnant women.

But you should limit or exclude tea leaves from the diet at the very beginning of pregnancy. In addition, a woman at this time has a special sensitivity to the components. Therefore, the invigorating effect of the drink can become exciting, which will also affect the baby. After all, any condition of the mother affects him.

Can pregnant women drink green tea? You can, but very carefully. Correctly brewed infusion, weak, and in very moderate doses (no more than 2 cups) will give mommy only benefits.

Lactation

Another question that worries women is - is green tea possible with breastfeeding?

Yes. But it is permissible to drink it in low concentration, in small doses, and only during the day. In the evening, he will prevent not only mother from falling asleep, but also the baby.

Harm of tea for women

The harm for women lies in the excessive consumption of the drink. It is especially abused by those who wish to lose weight.

• Its magical properties mysteriously disappear if it is improperly prepared and consumed.

Often, the fair sex drink the infusion after intense workouts in the gym. So, this is harmful, because after exercise the body needs only clean water!

Harm and benefits for men of a healing drink

Tea has a positive effect on potency. Sexual impairment is often very frustrating for men with age. The infusion helps to restore this masculine ability. How does green tea affect potency?

• Impotence occurs when there is a violation in the muscle of the male genital organ, which blocks the outflow of blood at the right time. She does not lend itself to training. The muscle needs zinc to function properly. This element is sufficient in green tea. Best results can be achieved when consumed with foods that also contain zinc. Plus, it affects the normal production of testosterone.
• It has long been known that long-term spending time at the computer and TV negatively affects the sexual ability of men. Radiation brings harm. This phenomenon is rendered harmless by the infusion of green tea leaves, diluted with milk.

In addition to restoring potency, the drink can give a lot of good and useful things to the stronger sex. The harm lies only in non-compliance with the measure in use, improper brewing and reception in the case when it is contraindicated.

Harm of tea, restrictions and contraindications

The benefits and harms of green tea are always there. For example, it is useful to drink it for the prevention of osteoporosis in old age, but at the same time it must be limited, since it can badly affect the joints during these years. Yes, it is advisable to reduce the consumption of the drink after 60 years (or even 50) to one or two cups a week. Especially if you have kidney disease.

It is better not to drink tea in large quantities if there is a predisposition to the formation of stones, especially when they are already available.

Exacerbation of ulcers and gastritis is also a contraindication to the use of the infusion.

Consumption combined with alcohol enhances the harmful effect.

Also, tea leaves from green leaves are prohibited:

• with hypotension;
• arrhythmias;
• insomnia;
• gout;
• heat (high temperature);
• glaucoma;
• high nervous excitability.

And more tips:

• You cannot drink the drink on an empty stomach.
• Strength does not add benefits, but, on the contrary, has a bad effect on well-being.
• From long brewing, the infusion becomes bitter, tasteless, and impairs its nutritional properties. Stale it becomes harmful.
• Do not take pills and other medicines with tea, they may not be absorbed.

A drink of health and longevity, beauty and youth, tea worthy of emperors and kings ... It even helped to survive the nuclear disaster in Japan without any special consequences for those who regularly consumed it. Should you doubt him? Of course not. The main thing is the measure and the absence of contraindications.

Tannins are the most essential ingredients in green tea. They are a mixture of about thirty polyphenolic tannins, catechins and their derivatives. Tea tannins have a bactericidal effect and stimulate the cardiovascular and nervous systems. Contains green tea and alkaloids, the most famous of which is caffeine. Due to the high content of these compounds, green tea is not recommended to be drunk at night.

Green tea is rich in vitamins, trace elements and minerals. The high content of vitamins P and C enhances immunity, vitamin A has a beneficial effect on vision, vitamins of group B regulate the carbohydrate balance, help fight against pathogenic bacteria, and have an antioxidant effect on the body. Calcium, fluorine, iron, potassium, iodine, zinc and other substances make green tea drink a real treasure of medicinal properties.

What are the benefits of green tea

Green tea is beneficial for many cardiovascular diseases. It strengthens and tones the blood vessels, prevents them from narrowing, lowers blood cholesterol levels and normalizes blood pressure. This drink also helps in the fight against diabetes mellitus - it improves sugar metabolism and has a beneficial effect on the work of the pancreas.

Green tea's strong antioxidant activity and high polyphenol content help protect against genetic mutations and cancer.

The green tea drink is doubly valuable for women - it helps them preserve youth and beauty. Lotions, masks, compresses with green tea visibly rejuvenate the skin and smooth wrinkles. 3-4 cups of green tea a day helps to gradually lose weight by removing excess fluid and toxins, speeding up metabolism and reducing appetite.

With caution, green tea should be used for joint problems such as rheumatoid arthritis and gout, kidney disease, duodenal ulcer, glaucoma, arrhythmia, exacerbation of gastritis.

How to brew green tea properly

For the tea drink to be of maximum benefit, it must be brewed. It is best to take spring water for tea. There is no need to boil it - heat the water until bubbles form at the bottom of the kettle and cool to 70-80 degrees. The teapot for green tea must be earthenware. Warm it up with boiling water, pour in the tea, pour the first water and drain it immediately. Then fill the tea with second water and leave to brew. The brewing time of green tea is individual for each type, information about this can be found on the tea packaging.

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Ordinary tea drinking can be significantly diversified by enriching the drink with simple and affordable ingredients. This fascinating process of breeding your own tea variety will enrich the gustatory palette of gastronomic preferences.

There are many components that can add a unique taste to an ordinary tea drink. And the additives are far from limited to the usual bergamot and. In addition, the correct component composition of ordinary tea will allow you to cope with some ailments.

Citrus fruit peels can be a universal ingredient for tea. To do this, cut the tangerine peels into 1 cm cubes and dry in the oven. You can store tangerine peels in this form in a dry and dark place. For one cup of tea, 3-4 pieces of tangerine are enough. Good for winter tea.

Lemongrass leaves also have a tonic effect. This plant can be found in. To make tea with lemongrass, it is enough to add a few leaves of this herb to a cup and brew with boiling water. Next, the dishes should be covered with a saucer or a special lid, leaving for a few minutes. Schisandra increases the release of adrenaline in the body and gives strength.

An unusual and very useful component for tea is dried nettle leaves. This plant has a record vitamin composition and stimulates the secretion of hemoglobin in the body. In addition, regular consumption of tea helps to normalize blood sugar levels.

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