Always want to sleep may be caused by the following factors: 1, poor night sleep or too short sleep, or sleep apnea and snoring while sleeping, and intermittent breathing phenomenon, affecting the quality of sleep; 2, overwork, mental stress or psychological stress, causing mental fatigue appears sleepy; 3, nutritional deficiencies, lower energy intake, nutritional deficiencies easily lead to sleepy love sleep, supplemental protein will make Sleepiness will improve; 4, other factors such as obesity, diabetes, hypothyroidism and other diseases, often with drowsy performance. Therefore, drowsiness and drowsiness should first look for the above reasons, if necessary, to do the relevant tests to exclude pathological reasons, for no obvious reasons, there is no need to worry, take to adjust the routine, appropriate rest, strengthen physical exercise, etc., the normal sleep rhythm can mostly be restored.