Sleep till midnight. What's wrong with not being able to sleep?

The sudden occurrence of panic and sleeplessness in the middle of the night may be caused by external environmental factors, such as rising indoor temperature, too dry air, too noisy outside, etc., which may affect the patient to fall asleep again. Being awakened by nightmares while sleeping may lead to the phenomenon of guilt and timidity, which makes the mind shake and the heart lose its nourishment, and then the symptoms of palpitation and insomnia. In addition, some respiratory diseases or cardiovascular diseases may also induce similar symptoms, such as coronary heart disease, severe hypertension, emphysema, chronic obstructive pulmonary disease, etc.