The following are some of the reasons for this situation: 1. It may be due to mental factors, such as neurasthenia, depression, anxiety, tension or neurosis, menopausal syndrome, etc., which may lead to general weakness and sleepiness. 2. Physiological factors, such as excessive fatigue, staying up late or mental stress, no good 3, pathological factors, may be caused by some or some chronic diseases, more common malnutrition, anemia, diabetes, hypothyroidism, renal insufficiency or chronic wasting disease, may lead to general weakness, want to sleep symptoms.