Eating cinnamon sticks generally does not raise blood pressure; cinnamon sticks do not have the effect of raising blood pressure. Gui Zhi belongs to the traditional Chinese medicine, for camphor plant cinnamon shoots, this Chinese medicine has the effect of sweating to relieve the muscle (to release the evil qi on the surface of the skin), warming the meridians, assisting yang to transform the qi, and leveling the Chong and descending the rebellious qi (to solve the upward rebellious qi with the medicine of descending the qi). It is used in treating wind-cold flu, cold pain in the epigastrium (feeling cold pain in the stomach and abdomen), blood-cold menstrual closure, paralytic pain in the joints, phlegm (pathological product formed by impaired metabolism of water and fluid), oedema, palpitation (accelerated heartbeat, often accompanied by panic) and running dolphin. According to the pharmacopoeia, Gui Zhi does not have the effect of raising blood pressure. Clinically, Gui Zhi is often used with Ephedra for external wind-cold and no sweating; with Bai Shao for external wind-cold and sweating on the surface; and with Hovenia Citrus and Allium sativum for chest yang dyspepsia, and chest paralysis (stuffy pain in the chest) and heart pain. This product is pungent and warm, easy to injure the yin and move the blood, where the external heat disease, yin deficiency and fire (deficiency of yin and essence in the body, the emergence of hyperactive fire), blood heat and paranoia (heat caused by blood abnormalities out) and other certificates, should be contraindicated. Pregnant women and people with excessive menstruation should be cautious. If there is any discomfort, it is recommended to consult a doctor in time and standardize the treatment under the guidance of a Chinese medicine practitioner, so as to avoid delaying the condition.