25 Interesting Facts About Dreams You Might Not Be Aware Of

Dreams are a natural part of sleeping. Surprisingly, many things about dreams and their purpose still remain unknown. Nevertheless, science is making progress in discovering the mysteries behind dreams. From premonition dreams and most common nightmares to sleep paralysis, check out these 25 interesting facts about dreams you might not be aware of.

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When we fall asleep, our brains don't shut down. Quite the opposite. Our brains become even more active. Sleep for humans is divided in two main phases (which go through 5 stages): non-REM (stages 1-4) and REM sleep (stage 5). REM sleep is where most of our dreams happen (but sometimes they happen in the non-REM phase as well), During REM sleep, our brains can become even more active than when we are awake because in simple terms, patterns of brain activity are more random and variable during this phase.

woman sleeping in bedSource: Healthysleep.med.harvard.edu, theguardian.com, Sciencedaily.com, iflscience.com, scientificamercan.com, ninds.nih.gov, healthcommunities.com
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Dreams occur in all five stages of sleep but nightmares tend to occur in the final stage (REM) which is associated with high brain activity, rapid eye movements and inhibited voluntary motor activity.

close-up of human eyeSource: medicaldaily.com, Webmd.com
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There have been people who dreamt of inventions that they actually made later in their real life. These inventions, envisioned in dreams, include alternating current generators, DNA’s double helix, sewing machine, periodic table and guillotine.

DNASource: viralmozo.com
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Blind people have dreams as well. People who went blind later in life have visual dreams just like anybody else. However, people who are blind from birth have dreams that feature elevated levels of sensory perception similar to how they would experience the world while they are awake.

blind peopleSource: phenomena.nationalgeographic.com
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Speaking of blind people dreaming, a 2014 study done by a group of Danish researchers found that blind people have more nightmares than non-blind people. In the study, 25 percent of the blind participants experienced nightmares compared to 7 percent of the later onset group and 6 percent of the non-blind group.

woman sleeping in bedSource: http://phenomena.nationalgeographic.com/2014/02/26/how-the-blind-dream/

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