Scientists have told the whole truth about the tea, writes lenta.ua
Chinese scientists have investigated the properties of tea. This drink is considered to be uniquely useful. However, experts were convinced that the benefit only of a particular type of tea, while other types can cause even harm. The first to suffer brain.
Scientists have collected two groups of people. All subjects were elderly. The first group drank every day for 4 cups of natural leaf tea, the second drank 4 cups of tea bags and tea extract.
Before the test, both groups underwent a complete examination and passed the MRI of the brain, and after many tests for brain activity. After the experiment the same manipulations were carried out again.
scientists findings were very interesting. It was found that those who drank natural tea showed improved performance of the brain. They increased cognitive abilities worsened memory, concentration and attention, and brain cells showed accelerated regeneration.
In this second group, who drank tea bags and tea extract did not show the same results. Moreover, the participants of the second group showed a much worse results, which do not reach even to the original performance. They worsened memory, cognitive processes become sluggish and weak. Scientists have suggested that the use of such a drink may even lead to premature aging of the brain, cognitive dysfunction, and even progressive dementia.
Natural tea, on the contrary, can be used as a prevention of dementia, aging brain, and even Alzheimer's disease.
Thus, packaged tea and tea extract had a negative impact on the brain and lead to the deterioration of neurophysiological and behavioral indicators.
Researcher found out that the tea bag is harmful to health, and therefore is not recommended for use. Preference is given to natural-leaf green tea.
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