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The questions, "Why do we dream?" or "What is the function of dreaming?" are easy to ask but very difficult to answer. The most honest answer is that we do not yet know the function or functions of dreaming.

en.wikipedia.org/wiki/Dream

A dream is a succession of images, ideas, emotions, and sensations that usually occur ..... People who are blind from birth do not have visual dreams. Their dream  ...

www.webmd.com/sleep-disorders/guide/dreaming-overview

Often people report having similar dreams -- they are being ... why we dream, many people find meaning in their dreams.

www.medicalnewstoday.com/articles/284378.php

Feb 23, 2017 ... Blind people dream more with other sensory components compared with ... Are dreams merely part of the sleep cycle or do they serve some ...

sleepfoundation.org/sleep-news/your-dreams

This dream report is just one of the myriad bizarre scenarios that people perceive to happen to them while they sleep. Some people describe specific elements ...

health.howstuffworks.com/mental-health/sleep/dreams/5-reasons-why-you-dream.htm

Some dream in black and white; most people dream in color. However, one thing is ... But, what exactly are dreams, and why do we have them? Dreaming is a ...

www.psychologytoday.com/blog/sleep-newzzz/201502/why-do-we-dream

Feb 13, 2015 ... People who are depressed or anxious are more likely to have stressful, disturbing, or frightening dreams, sometimes in the form of recurring ...

www.scientificamerican.com/article/why-do-we-dream

Jul 14, 2003 ... The most honest answer is that we do not yet know the function or functions ... Thus people who experience trauma--such as an escape from a ...

www.livescience.com/17290-facts-dreams-nightmares.html

Dec 2, 2011 ... Why do some people have nightmares while others really spend their nights in bliss? Like sleep, dreams are mysterious phenomena. But as ...

sleep.lovetoknow.com/Why_Do_People_Dream

Includes: theories on dreaming, medical theories, why do certain types of dreams occur?, and there isn't one answer.