There are many reasons for frequent sleepiness and lack of energy, mainly the following aspects: 1, physiological factors, common overwork, staying up late, poor rest, mental stress, etc., are transient, can be effectively relieved by adequate rest; 2, pathological factors, such as anemia, malnutrition, hypothyroidism, chronic kidney disease, chronic wasting disease, metabolic disease, etc., pathological factors, such as anemia, malnutrition, hypothyroidism, chronic kidney disease, chronic wasting disease, metabolic disease, etc., need to improve the relevant examination to clarify the specific cause of the disease. The pathological factors are difficult to be relieved by adequate rest, and need to be treated for the primary disease after the improvement of the relevant examination to clarify the specific cause; 3. Psychiatric factors, such as anxiety, depression, neurosis, menopausal syndrome, etc., need psychological intervention and psychological guidance by a specialist, and auxiliary medication to get effective relief.