Dendrobium belongs to a kind of traditional Chinese medicine and has no special regulating effect on the heart. Dendrobium is the stem of Dendrobium plant, which has the effect of nourishing yin and clearing heat, benefiting the stomach and generating fluids, and clinically it has the effect of treating gastric yin deficiency, renal yin deficiency, and fever and fluids injury, so it does not have the effect of regulating the heart. Dendrobium is sweet in taste and slightly cold in nature, and it is forbidden to take dendrobium for those who have not injured the yin in the early stage of warm-heat disease, those who have not transformed the dryness of wet-warm disease (warm disease caused by feeling dampness and heat), and those who have deficiency of spleen and stomach, so as not to aggravate the condition of the patients. When patients need to take dendrobium, it is recommended to consult a doctor in time, under the diagnosis and treatment of traditional Chinese medicine practitioners, and not blindly use the medicine by oneself.