From the point of view of nutrition, tea contains a variety of amino acids, sugars, vitamins, aromatic substances, tea polyphenols, caffeine and other components that are beneficial to human health, especially tea polyphenols and caffeine. I believe everyone is familiar with caffeine. Not only tea is rich in caffeine, but also coffee contains a lot of caffeine. This nutrient has a good refreshing effect. When our nerves are bad, or when we are under great pressure, we can drink some tea to relieve it. At the same time, tea polyphenols in tea also play an important role in health, which can delay aging, scavenge free radicals and resist radiation to some extent.