Drowsiness is not a typical symptom of novel coronavirus and may be the result of illness and lack of energy, sleep apnea syndrome, or some wasting disease. Symptoms of novel coronavirus are mainly fever, dry cough, malaise, and in some patients, chest tightness, shortness of breath, and even functional impairment of internal organs. Other patients may present with nasal congestion, runny nose, sneezing, muscle aches and diarrhea and other related clinical manifestations. Drowsiness is mostly caused by lack of sleep, but also due to too much fatigue or psychological stress, long time in a state of tension, resulting in brain fatigue, lack of energy, sleepy performance. Sleepiness can also be caused by diseases, such as sleep apnea syndrome, usually considered to be related to obesity, but also with inflammation of the tonsils or chronic rhinitis and other diseases. As snoring is more frequent during sleep, it is easy to cause low ventilation, resulting in lack of oxygen to the brain, causing sleepy performance. In addition, it may also be caused by certain consumptive diseases, such as hyperthyroidism, severe trauma, malignant tumors and so on, which will lead to sleepiness. If the symptoms are severe, you can consult a physician for a clear diagnosis under the guidance of a physician. Those who are suspected to be infected with new crowns, especially those who are in close contact with infected people, need to improve the nucleic acid test for new crowns in time.