Tea contains caffeine. Drinking tea can make the cerebral cortex active, cheer up, improve work and improve the efficiency of thinking and learning. In addition, the tea in tea is also a good cooling agent, which can take away the heat in your body when drinking tea.
In addition, amino acids, water-soluble pectin, tea polyphenols and aromatic substances in tea can stimulate the oral membrane and promote saliva secretion, thus achieving the effect of promoting fluid production and quenching thirst.
2. Drinking tea can supplement potassium salt and water.
In summer, the sweat of heaven and man increases obviously, and the potassium salt in the body will be lost with the sweat, and tea is a food containing potassium. The average leaching amount of potassium in black tea is 24. 1 mg for tea soup and 10.7 mg for green tea. In addition, a large amount of sweat excreted from the body will lead to insufficient water in the body, and it is necessary to constantly replenish water.