The dangers of black tea appears when it is excessive or improper consumption and the consumption by persons with certain chronic diseases.
On the maximum benefits of tea beverage, you can talk only when he is prepared in compliance with the basic rules:
for brewing you need to use boiling water;
1 tsp loose leaf tea (2 g) should be placed in a porcelain or earthenware pre-warmed tea pot, pour boiling water (200 ml), leave for 5 minutes covered with a tea towel; pour in after Cup
more preferably initially to make tea than to insist «welding», and then to dilute it with boiling water;
in the process of welding it is recommended to use filter bags or special strainers to separate raw and drink and not perezevaite tea .
Benefit of black tea is due to the amount of alcohol consumed beverage, it is not recommended to indulge in them excessively. The benefits of black tea (subject to daily allowance in the amount of 2-3 cups) is as follows:
the caffeine content equates to the same effect after consumption of coffee — has a tonic, brain effect;
regular consumption of black tea reduces the period of recovery after undergoing a stressful situation ;
relieves fatigue, stimulates metabolism, normalizes the activity of the heart and blood vessels.
the content of tannins has antimicrobial action, promotes the excretion of radionuclides and heavy metal salts;
content of bioflavonoids provides immune protection effect;
an excellent means of prevention of cataracts, dental caries,
contributes to the normalization of intestinal microflora;
improves cardiovascular system, stimulates surface blood vessels; a weak infusion reduces blood pressure, and strong — improves; quartzetine prevents the formation of blood clots;
stimulates the secretion of digestive juices, it prevents nausea.
The dangers of black tea appears when it is excessive or improper consumption and the consumption by persons with certain chronic illnesses:
excessive consumption of black tea irritate, with a drink in any quantity you need to be careful for people suffering from gastritis or peptic ulcer disease;
strong black tea adversely affects the heart, with tea at any concentration must be careful to the people suffering from hypertension and other cardiovascular diseases;
at high intake at night can cause insomnia ;
reckless and excessive consumption of black tea can cause arrhythmia, and tremor of the limbs, cramps in the stomach and intestinal spasms, and to upset the metabolic processes, causing dehydration.
Moderate consumption of properly brewed black tea does not entail any harm.