Why do we Have Nightmares?

There are two main types of scary phenomenons in sleep(nightmare and sleep paralysis) that are caused by two main scary symptoms of cardiovascular disease {palpitation and fainting (syncope)}. Persons who palpitation is easy to occur are easy to have nightmare, drugs can cause nightmare because drugs can cause palpitation. Females are easier to have nightmare than males, because palpitation is easier occur to females than to males. Women have a huge amount of nightmares during pregnancy because women experience more palpitations in pregnancy. Physical factors that contribute to bad dreams include fever as also sleep because fever causes an increase in the heart rate, When palpitations occurs, people will have two most common feelings: one is tachycardia cause a feeling of seeming to be chasing ; the other is bradycardia or premature beat cause the feeling of heart suspension or heart sinking. Therefore, people in sleep accordingly will have the two most common nightmares : one is dream of being chased (occasionally hunting other people) ; the other is dream of flying in the air or dream of falling down. If transient cerebral ischemia or fainting occuring during the day may result in some very terrible dizziness, palpitations, feelings of chest pressure, dim vision, tinnitus and a variety of neurological symptoms. As a result, all the people who are prone to cerebral ischemia or fainting frail corporeity, excessive fear, taking the quinidine which may lead to low blood pressure, as well as a excessive high pillow ors, error in sleeping style which may lead to the aggrieved neck, pressed blood stream. when they sleep in deep night, they will have the extraordinary corresponding horrible dreams, in the dreams, they do some kind of terrible Belial pressuring them or being hunted down, but they can not cry out or escape, which are called nightmare in iatrology. Vague terrors in light sleep, which is known as sleep paralysis. Sometimes people was just woken up with the cerebral ischemia or fainting, be cause the vision continuing for a few minutes and dyskinesia have not yet concluded, which will cause psychological illusion that people struggle to wake up but fail to do it. For instance, a place in country, there is a “haunted” bed which makes people have nightmares every night and it is this fact that the pillow in the bed is too high. Another example, sleeping pills are the treatment of nightmare of being chased of neurasthenia, due to the nightmare of being chased of such patients is caused by tachycardia, and sleeping pills can lead to slower heartbeat, moreover slower heartbeat sometimes leads to sleep paralysis or fainting for people of low blood pressure. Therefore, treating a nightmare with sleeping pills at times is not only invalid, but also it will instead increase the patient’s state of the disease.