Drowsiness generally belongs to drowsiness, a pathological symptom. It can be seen in kidney yang deficiency, also can be seen in phlegm and dampness, the spleen is not healthy and transportation, and the positive qi is not recovered from a serious illness. 1. Mental fatigue, fuzzy consciousness, drowsiness, and cold limbs are mostly due to deficiency of kidney yang and loss of warmth of God; 2. Sleepiness, drowsiness, drowsiness of the head and eyes, chest tightness and epigastric plumpness, heavy limbs, mostly phlegm-dampness trapped spleen, Qing Yang does not rise (light and clear yang can not rise); sleepiness after meals, loss of appetite, abdominal distension, less gas and lazy speech (lack of strength, do not want to talk), mostly the spleen is not healthy and transportation, Qing Yang does not rise; 3. Drowsiness and fatigue after a serious illness is a sign that the positive energy has not yet been restored. The appearance of drowsiness need to go to the hospital in a timely manner, individuals should not self-diagnosis or medication, so as not to cause adverse consequences, delay the condition and jeopardize health.