The composition of green tea
Useful properties of a product, often due to its chemical composition and required to substances contained in it. This also applies to green tea. It is a source of large amounts of vitamins, minerals, trace elements, amino acids and organic compounds. In all of this, green tea is considered very low-calorie, and at the same time nourishing drink, which is often used as a means to combat excess weight and at the same time as a way to quench your thirst.

From vitamins in green tea can be found vitamin A, B1, B2, B3, E, F, K, P and U. All of them have a certain effect on the body and can affect the internal organs. Particularly noteworthy vitamin C, which protects the body from different viruses, is a powerful antioxidant and is able to strengthen the immune system. As for the micro and macro, the green tea contains practically all of them. The most useful to the body - is potassium, iodine, fluorine, copper, iron, manganese, zinc, magnesium, phosphorus, manganese, calcium, and many others.
 
Not to mention about the caffeine in green tea. Contrary to popular belief that the main source of caffeine is coffee, we can safely say that the green tea it is much more. Caffeine stimulates the nervous system, and has an invigorating wake-up feature, so it is valuable for those who lead an active lifestyle. Unfortunately, despite the high concentration of caffeine in green tea, its effect is neutralized substance such as theanine. It is a relaxing effect on the body that does not give caffeine to manifest fully. In some varieties of green tea caffeine more, some less, but all of them in proportion to the content of theanine to caffeine.

The final component of green tea that deserves attention is the catechins, polyphenols belonging to the group. They are powerful antioxidants, and it is thanks to them that green tea is used as a means for preventing the formation of cancerous tumors. In addition, they provide tea ability to strengthen the immune system and fight viruses and microbes.

Benefits of green tea
Considering the above rich and very diverse composition of green tea, it is not surprising that it has a mass of useful properties.

Let's start with the most common and best known of them. As mentioned earlier, green tea is a source of vitamin C and powerful antioxidants. That's what makes it an indispensable tool for promoting health and improving the body's resistance to all possible viruses. Green tea improves mental abilities of the person, a positive effect on attention, memory and concentration. This drink is used as a diaphoretic, it is therefore almost indispensable at elevated temperature and fever. In addition, thanks to green tea, while sweating with moisture from the body naturally appear in it accumulated toxins. Green tea is recommended for people suffering from disorders of the genitourinary system, and kidney disease.

The beneficial effects of green tea has on the cardiovascular and circulatory system. Regular consumption of green tea significantly reduces the likelihood of atherosclerosis and heart failure. The substances contained in tea, strengthen the walls of blood vessels, making them more flexible and prevent blood clots and cholesterol plaques. It is also necessary to say that green tea reduces the permeability of the vessel walls and the absorption of nutrients by the body. Useful green teas and hypertension, as it leads in the tone of blood vessels and lowers blood pressure. Due to the normalization of the blood circulation, body tissues and cells get enough oxygen, which is delivered to them with blood. 

Green tea is an excellent natural remedy for improving digestion and the gastrointestinal tract. He takes part in metabolism, significantly speeding up the process and promotes the assimilation of mineral nutrients in the body and normalizes the intestinal microflora. Some of the substances contained in green tea, contribute to the breakdown of subcutaneous fat, which makes it an indispensable tool for weight loss, which will help moderate pace and without harm to health to lose weight. It is because of this property of green tea is a part of most diets, it is allowed to drink even under the most severe restrictions in the diet.

Green tea in cosmetics
In addition to the internal state of the body, green tea is able to have a positive impact on our appearance. Due to the normalization of blood circulation and metabolism, the skin gets the vitamins, minerals and nutrients in sufficient quantities, that returns to her beautiful and blooming. Accelerated blood circulation prevents the occurrence of acne and boils, and the normalization of the sebaceous and sweat glands eliminates long extension due to clogging of subcutaneous fat. If the internal effects on the body is not enough, you can resort to cosmetic procedures with the use of green tea as one of the main components of means to care for the body.

In order to maintain the tone and elasticity of the skin on a daily basis it is recommended to wash freshly green tea. To enhance the effect of the procedure can be frozen cubes of green tea and wipe the face with them after morning procedures. Green tea is a part of many funds to rejuvenate, cleanse the skin and eliminate unpleasant rashes.

To make a mask with green tea will need two tablespoons strong tea leaves of green tea, one tablespoon of fresh grapefruit juice, one teaspoon of aloe juice and one egg yolk. All ingredients are mixed until a homogeneous mass, and then applied to the face evenly. Time exposure mask 15 minutes, after which it must be washed off. To use the mask as a scrub, just add it to the milled oatmeal or oat flour, and then applied to the skin in a circular, massaging motion.

Harm green tea
Despite the abundance of useful properties, green tea has a number of contraindications and precautions that should be followed in order to avoid unwanted, unintended consequences. Too strong brewed green tea can cause insomnia, as well as lead to irritability and fatigue. It is not recommended to use it for people suffering from hypotension, as green tea helps to reduce the pressure. Do not abuse the green tea to those who have gastric ulcer. This is due to the fact that the drink increases the acidity of gastric juice and irritate the stomach lining. For this reason, should not drink green tea on an empty stomach.