If drowsiness is not due to the stress of life, it may be a physical problem that requires timely examination and treatment. Diseases that tend to cause drowsiness include severe acute infections, cranio-cerebral diseases, endocrine and metabolic disorders, cardiovascular diseases, and the more common clinical diseases are cold, fever, and pneumonia. The diseases can cause symptoms of hyperthermia, which leads to drowsiness in patients. In addition, if hypertensive patients experience drowsiness, it may be caused by cerebral ischemia and bleeding, or even cause cerebral embolism and cerebral thrombosis, which needs to be treated promptly. Endocrine disorders, hypotension, severe shock, and cardiac arrhythmia can also cause symptoms of drowsiness, which require timely treatment of the primary disease and supplementation of nutrients to provide nutritional support and avoid complications, which can otherwise be life-threatening.