Weakness and lack of energy may be due to poor innate endowment, or it may be caused by qi deficiency and cold, spleen deficiency and dampness (the spleen’s function is weak, and dampness stays), and so on. The specific cause should be decided in conjunction with the patient’s other symptoms. 1. Poor innate endowment: the first thing to consider is whether the innate endowment is poor or caused by overwork, if it belongs to the innate physical factors, you need to strengthen the exercise, pay attention to rest, to ensure that the reasonable intake of nutrients, strengthen the body to improve. 2. qi deficiency cold: occasional weakness and lack of energy, may be caused by qi deficiency cold, accompanied by headache, fever, runny nose and other symptoms, it is recommended that under the guidance of the doctor to take ginseng Su drink plus or minus treatment. 3. Spleen deficiency and dampness: Spleen deficiency and dampness may also cause weakness and lack of energy, accompanied by loss of appetite, abdominal distension and pain, loose stools and other symptoms, it is recommended that under the guidance of the doctor to take ginseng and atractylodisperse treatment. There are many causes of weakness and lack of energy, we need to consult a doctor in a timely manner to clarify the cause of the disease and carry out targeted treatment.