Why do we dream?

Mich asked:

Why do we dream?

Answer by Shaun Williamson

No one is really sure. What we do know is that if you sleep you dream and if you don’t sleep then you die.

Freud suggested that the purpose of dreams is to keep us asleep and certainly many dreams seem to fall into this category. A more important question is why do we need to sleep?

There may not be just one answer to this question but sleep seems to be important to the functioning of brains in humans and in many other animals.

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