People who have dreams at night are as follows: 1) patients with neurosis, who suffer from cardiac neurosis will have palpitations, chest tightness, shortness of breath, insomnia and dreaming; 2) patients with sympathetic over-excitement do not have deep enough sleep phases at night, which will lead to dreaming; 3) patients who have shortened deep sleep phases and long light sleep phases will have frequent dreaming during light sleep; 4) patients with vegetative nerve disorders, such as excessive stress at work or study or transient ischemic attack, will also have insomnia at night, accompanied with transient cerebral ischemic attack. Patients with vegetative nerve function disorders, such as excessive pressure in daytime work, excessive study pressure or transient ischemic attack, will also suffer from insomnia at night, accompanied by dreaming.