There are many types of tea, including white tea, green tea, black tea, flower tea and many other types, and different types of tea have different effects. The benefits and disadvantages of drinking tea at night are related to a variety of factors such as the concentration of tea, personal needs and physical condition. First, the benefits: tea has caffeine, theophylline and other components, half an hour after dinner in moderation, tea can stimulate gastric acid secretion, conducive to digestion. Caffeine can also improve the excitability of the nervous system, if you need to work and study at night, drinking tea in moderation can improve mental state and attention, and improve efficiency. In addition, tea is rich in minerals, such as potassium, manganese, zinc, etc., the right amount of tea can replenish the body’s mineral elements. For patients with sleep disorders, you can drink some rose tea in moderation at night, the tea can play a certain sleep-aiding effect. Second, the disadvantages: due to the role of caffeine and theophylline in tea, if you drink strong tea at night on an empty stomach, may cause stomach discomfort; drinking tea before bed may also lead to difficulty falling asleep, shallow sleep, easy to wake up, etc., and in serious cases will also lead to daytime mental discomfort, reduce learning and work efficiency, so it is generally not recommended to drink tea before bed, especially drinking strong tea. In addition, kidney disease patients who drink tea at night, may aggravate the symptoms of frequent night urination and morning edema. Even normal people, if you drink more tea before bed, due to frequent nighttime, may also affect the quality of sleep.