If the human body has a low fever for too long, it will lead to the incomplete function of the organs and chronic failure of the organs. A long low fever will cause serious disorders of digestion and absorption for the digestive system, as well as serious disorders of digestion and absorption, resulting in nausea, acid reflux, digestive malabsorption, and even abdominal pain, bloating, constipation, diarrhea, etc. The relative lack of nutrients cannot be absorbed, and at this time the patient will have serious anemia, wasting The patient will suffer from severe anemia, wasting and other nutritional deficiencies. It also has many adverse effects on the cardiovascular system, causing tachycardia, arrhythmia, myocardial ischemia, especially chest tightness and shortness of breath, palpitations, and precordial discomfort. For the respiratory system will aggravate the original disease, and will lead to breathing difficulties, breathlessness, and will also seriously affect the function of the nervous system, leading to sleep dysfunction resulting in insomnia, excessive dreaming and other situations.