There is no clear rule on whether to drink mugwort tea in the morning or at night, and it is generally recommended to drink mugwort tea in the morning. Mugwort tea for warming the middle and dispersing cold (to warm the spleen and stomach medicine to dispel cold) class of medicinal formula. The main component of the formula is mugwort leaves. Mugwort is warm in nature, pungent and bitter in flavor, and belongs to the liver meridian, spleen meridian and kidney meridian. Mugwort leaf tea has the effect of warming the middle, dispersing cold and relieving pain. It is suitable for those who suffer from pain in the stomach and abdomen with coldness. Mugwort tea is generally recommended to drink in the morning, because Mugwort has a certain effect of refreshing the brain, drinking tea made of Mugwort in the morning can help to enhance energy, improve and study efficiency. If you drink mugwort tea at night, it is easy to sleep, especially insomnia people, should try to avoid drinking mugwort tea before bedtime to avoid aggravating the symptoms of insomnia. Yin deficiency and blood heaters should be cautious of drinking mugwort leaf tea. Mugwort leaf tea is only a tea drink, the active ingredients are limited, and can not be used directly as a drug for treatment. Drinking mugwort leaf tea should be under the guidance of traditional Chinese medicine, so as not to cause adverse reactions.