The lack of energy and also just want to sleep, may be electrolyte metabolism disorders, cardiopulmonary disease, recent life irregularities, as follows: 1, electrolyte metabolism disorders: low sodium, low potassium, low chloride, ask the patient’s medical history, whether there is a large number of recent nausea, vomiting, diarrhea, can be clearly diagnosed by going to the hospital to check the ion, kidney function, by replenishing electrolytes, the above symptoms can be relieved; 2, cardiopulmonary disease: such as chronic obstructive pulmonary disease or pulmonary heart disease, long-term hypoxia, ischemia will appear the above symptoms, can be clearly diagnosed through lung CT and arterial blood gas analysis; 3, recent life irregularities: such as long-term late night, weight loss, patients will appear the above symptoms, through changing the work and rest routine and normal eating, the symptoms can be relieved. Therefore, it is recommended that patients with the above symptoms should actively go to regular hospitals for treatment to identify the cause of the disease.