Black tea - one of the most popular beverages. With a cup of tea begins the morning of millions of people on the planet. The drink goes well with milk, honey, lemon and other ingredients, so it is loved by all. The unique composition of the drink - a large number of trace elements, vitamins and biologically active substances makes it incredibly rewarding and invigorating. Tea activates the function of all organs and systems of man: blood circulation, the gastrointestinal tract, nervous system. As with any remedy, tea should be used in reasonable doses.