Suddenly especially sleepy must be combined with the patient’s physical health, as well as the underlying diseases, living environment to specific analysis, roughly as follows: 1, such as during pregnancy, women may be due to hormone secretion abnormalities, resulting in the emergence of especially sleepy, which is a normal physiological phenomenon; 2, there is a sudden especially sleepy, if some of them, such as cerebral insufficiency, cerebral infarction, or cerebral hemorrhage sequelae of the elderly. If some elderly people like those with insufficient cerebral blood supply, cerebral infarction or after-effects of cerebral hemorrhage suddenly appear this kind of situation, we must be alert to the aggravation of cerebrovascular disease, for example, because of the slow supply of blood to the brain, or cerebral infarction with new infarcts in the frontal lobe or temporal lobe, which will lead to the patient’s apathetic consciousness, and make him sleepy in the daytime, and he should consult hospitals in a timely manner to carry out checkups and treatments. Because the lung function is not good, leading to the patient’s brain in the state of lack of oxygen and the symptoms.