What tea do you drink before going to bed?

What kind of tea is suitable for sleeping? If you want to work overtime in the middle of the night, drink green tea, oolong and Shengpu. If you want to go to bed early, most teas will refresh you. It's all caused by caffeine Of course, different people have different sensitivities to caffeine. This information can be inferred by genes. Generally speaking, cooked tea (probably due to the combination of caffeine), charcoal-baked oolong tea (due to the sublimation of caffeine), γ -aminobutyric acid tea (the product of the laboratory, Anshen tea), eagle tea (non-decaffeinated tea) and cocoa tea (decaffeinated tea) are better. It takes about 5 hours for normal people to metabolize caffeine. Some people adapt to caffeine, or are not sensitive to caffeine, and they will not feel refreshed after drinking it at night, so they can drink anything before going to bed.