Dried cinnamon can be used as a traditional Chinese medicine, of which the name of the herb is Longan Meat, which has the effects of tonifying the heart and spleen (tonifying the heart and spleen with tonic-type medicines), nourishing the blood and calming the mind (stabilizing the mind and soothing the emotions by nourishing the blood), and is only used for treating insomnia due to deficiency of qi and blood. Longan meat is the aril of longan of the Sapindaceae family. It is sweet in flavor, warm in nature and belongs to the heart and spleen meridians. It has the effect of tonifying the heart and spleen, nourishing blood and tranquilizing the mind. It can be used for the treatment of palpitations (rapid heartbeat, often accompanied by panic), palpitation (rapid heartbeat, panic), forgetfulness and insomnia, and blood deficiency and atrophy due to deficiency of qi and blood. It should be noted that longan meat for the treatment of insomnia, need to be used under the guidance of the physician’s diagnosis, often combined with other Chinese herbs, in order to play a better therapeutic effect. People with phlegm fire, phlegm-dampness and water-drinking should not take it. In addition, the occurrence of insomnia may also be related to phlegm-fire disturbing the heart, heart-kidney disharmony (heart fire, kidney yin deficiency, dysfunction of the physiological functions of the heart and kidneys) and so on. Therefore, those who have insomnia, should promptly and actively seek medical treatment, under the guidance of the physician’s diagnosis and use of medication, not blindly consume dried cinnamon.