Tea is good for health, but not for everyone, not always and not in any quantity. Some categories of people should drink less tea at work or even exclude it from their diet.

Pregnant women The tea contains a certain amount of caffeine, which, stimulating the fetus, negatively affects its development. Often you can hear that, since there is less caffeine in red tea, it is not harmful to pregnant women. But, in fact, red and green tea do not differ much in this indicator. According to Japanese researchers, five cups of strong tea drunk a day contain so much caffeine that can lead to underweight babies. In addition, caffeine causes an increase in heart rate and increases urination, which increases the burden on the heart and kidneys and thus increases the likelihood of developing toxicosis.

Afflicted with ulcer Although tea promotes digestion, but suffering from gastric ulcer and duodenal ulcer, as well as high acidity in the stomach should be observed moderation. A healthy stomach contains a phosphoric acid compound that reduces the secretion of stomach acid in the cells of the stomach walls, but the theophylline contained in tea can suppress the function of this compound, resulting in an excess of gastric acid, and the increased acidity of the gastric juice inhibits the healing of ulcers. Therefore, it makes sense for the ulcerers to limit the consumption of tea and in no case to drink strong tea. They prefer to drink tea with milk and sugar.

Sufferers of atherosclerosis and hypertension in severe form Patients with a similar diagnosis should also drink tea with caution, and during periods of exacerbation give up eating red and hard brewed tea. This is due to the fact that the tea contains theophylline and caffeine, which stimulate the central nervous system. And when the cortex of the brain comes into a state of excitement, the blood vessels of the brain narrow, which is dangerous for those suffering from atherosclerosis and can cause the formation of blood clots in the brain.

Sufferers of insomnia A cup of strong tea before going to bed brings the central nervous system and the brain into a state of excitement, the pulse becomes faster, the blood flow accelerates, it becomes almost impossible to fall asleep.

Patients with high fever It is generally believed that a strong hot tea quenches thirst well and is therefore useful at elevated temperature. But this is far from reality. Recently, British pharmacologists have found that strong tea not only does not benefit the suffering heat, but on the contrary, theophylline contained in tea raises body temperature. Theophylline also has a diuretic effect, and therefore it makes ineffective or ineffective any antipyretic drugs health. Sumy. Ua.