According to legend, tea was discovered by a Chinese hero almost 3,000 thousand years BC. He traveled in search of healing herbs with a cauldron in which he boiled water for decoctions, and tea leaves accidentally fell into the cauldron. The drink aroused vigor and gradually the tea spread throughout Asia. Originally used only as a medicine, but over time, tea ceremonies were held for pleasure. New varieties and exotic methods of tea processing were developed – for example, the leaves were fried with rice. In some countries, they not only drink green tea but also eat it: make a salad, pickle it.
Green tea retains most of its beneficial properties, as its processing is minimal. The leaves are collected, dried, twisted and quickly stop the oxidation process, without bringing it to the stage of black tea.
Tea contains many useful substances. The most famous property of green tea is antioxidants. Due to this, it affects the whole body. Regular use improves skin condition and well-being.
With colds and general malaise, green tea helps remove toxins and improves metabolism. Tea also has anti-inflammatory properties and facilitates the course of the disease. Green tea gives strength, fights lethargy and depression, reduces drowsiness. Therefore it is so beneficial to drink it in the morning. Fluoride and iodine in tea help remove heavy metal salts.
The diuretic effect of the drink helps relieve swelling and remove “excess” water from the body, facilitating the course of diseases of the genitourinary system. Green tea is also good for the heart and blood vessels. In a small amount, it lowers blood pressure in patients with hypertension, and also reduces the risk of atherosclerosis, increasing the elasticity of the walls of blood vessels.
Excessive amounts of tea can also be harmful, especially to people with high blood pressure or a tendency to overexcite the nervous system. About 4 to 6 cups of sugar-free tea can be drunk per day.
Tein – tea caffeine, has an exciting effect, so you should not drink a lot of tea at night: this can provoke insomnia. Polyphenols in tea in large quantities can inhibit the liver. Excess tea can lead to headaches, dizziness, and tremor of the limbs.
The benefits of green tea have long been officially recognized in medicine. For example, a study of radiation therapy found that the addition of polyphenols from green tea half an hour before the procedure greatly reduces its effectiveness. It follows from this that green tea increases the body’s resistance to various radiation and binds free radicals, which are one of the causes of aging. The complex effect of substances from green tea on cancer cells has been proven. It slows down their growth and contributes to the destruction of malignant cells. However, drugs based on the extract of green tea have not yet been created; studies have not been conducted for long enough. While the extract is added to other drugs.
Patients with high blood pressure and heart disease noted improvement when biologically active additives with green tea extract were added to food. It has also been observed that tea lowers blood sugar, which is beneficial for diabetics.
Green tea is widely used in cosmetology, in the form of extracts in masks and creams. At home, you can wash your face with tea which reduces inflammation and brightens age spots.