In winter, you can drink black tea to prevent colds, warm your stomach, supplement nutrition and keep fit. You can also drink Pu 'er tea to nourish the stomach, clear away heat, detoxify and warm the stomach. Drinking oolong tea can prevent dry mouth, moisten skin, moisten throat, promote fluid production, prevent liver fat accumulation, and have a certain weight loss effect. On the other hand, you can also drink some scented tea to relieve depression, relieve irritability, nourish the liver and benefit the gallbladder, clear the liver and improve eyesight, strengthen limbs, dredge meridians and refresh your mind. Drinking black tea can also keep out the cold and lower blood sugar and blood lipid.