Usually when you end up drifting off to sleep, you fall into a deep sleep and begin to experience a so called dream. However, most children, and even some adults, experience some even more terrifying so called dreams. These dreams are called nightmares. Nightmares have been occurring in peoples sleep for hundreds of years. People have been interested in them for centuries and they have quite an interesting past to them.

People used to believe that the dream anxiety attack was caused by a demon pressing up against a persons chest during their sleep. They were even considered as a form of black magic, evil affiliation, and even sometimes possession.
The sleep cycle comes in a multi-stage cycle. All in all there are five cycles. The first four of the stages is where there is non-rapid eye movement (NREM). As the fifth stage occurs, that is where rapid eyes moment (REM) happens. Nightmares almost always occur in the second half of a persons sleep and it is always followed with an awakening of the individual even if the person doesnt remember waking up during the night. Nine times out of ten, when peoples brain cant handle what is going on during the rapid eye movement stage, they wake up very panically and are also very aware of their surroundings.
Nightmares are mostly referred to as being a younger persons trouble but you will find that a lot of adults have the problem of nightmares also. The childrens nightmare is very different than the adults because the adults nightmare is based on the persons fears such as being chased or attacked. The childrens nightmare is more of a fantasy nightmare. Anyone that has a high fever before they go to bed is more likely to suffer from a nightmare. Rapid eye movement will usually wake a person up if they can sense that something bad is going to happen. Most of the time when one has a nightmare, will wake up right before some really bad will happen. the most popular nightmare is when you are actually falling from something that is very high up in the air. It always ends by you waking up right before you are about to hit the ground.
It is been proved that no matter how many nightmares that one person will have, not one single nightmare will be exactly the same as any of the others. You could end up having a nightmare that is occurring in the same lace as another but there will never be the same exact nightmare more that once. That is very hard to believe considering all of the nightmares that you will come across in your lifetime.

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In reading these articles, I have learned a lot about the subject of nightmares. I had never known before that you will never encounter the same nightmare more than once. I also didnt know about the rapid eye movement and the non-rapid eye movement stages. I now know that whenever you wake up sometimes and you have slept for a really long amount of time and youre still tired, thats because you were waken up during one of the other sleep cycles instead of waking up during the first stage.

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