Dreams occur during REM sleep and are essential for brain development. Recall of dreams is related to waking up during or after the dream. People who don’t remember their dreams simply don’t recall them, and some may not remember due to psychological reasons.
Everyone dreams, but not everyone remembers their dreams. Some people may have intense memories of a dream while others only remember a few details and others may not remember anything. While the circumstances of how much we remember our dreams may vary, dreams are still essential for brain development.
A dream is defined as a sequence of thoughts, images and emotions that occur in the mind while a person sleeps. Dreams mainly occur during the REM stage of sleep, which is one of two major stages, the other being the non-rapid eye movement (NREM) stage. REM sleep is characterized primarily by the increased eye movement associated with its name, but it also involves increased brain activity, accelerated breathing, relaxation of the muscular system, and more intense dreams. NREM sleep has four different stages, or levels, during which dreams may or may not occur, and are usually less intense when they do.
Not only does everyone dream, but everyone also has several dream episodes every night of sleep. Generally, the ability to recall a dream is related to whether or not you wake up after having the dream or not. In other words, if you wake up during or shortly after a dream, chances are you will remember it, and if you sleep during this dream, you probably won’t. Some people can vividly remember their dreams for long periods of time, while others forget them rather quickly.
People who believe they don’t dream or enter REM sleep simply don’t remember their dreams. There are psychological reasons why the mind would not actually allow a person to remember a particular dream. An example would be when a particular dream is so intensely real that the person having the dream would be unable to discern whether or not it actually occurred. This kind of gray area between dreams and reality could cause harm if a person allowed themselves to believe that their dream was reality. What if they dreamed they could go off a cliff and fly? In this example, it is better for the mind to shut down the dream memories than to allow reality to be clouded to the point of bodily harm or even death.
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