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why do we dream ? how they affect sleep - Coggle Diagram

- - - - 13-19 years old
- - - - building memory
        
        Dreaming has been associated with consolidation of memory, which suggests that dreaming may serve an important cognitive function of strengthening memory and informational recall.
      - processing emotion
        
        The ability to engage with and rehearse feelings in different imagined contexts may be part of the brain’s method for managing emotions.
      - mental housekeeping
        
        Periods of dreaming could be the brain’s way of “straightening up,” clearing away partial, erroneous, or unnecessary information.
      - instant replay
        
        Dream content may be a form of distorted instant replay in which recent events are reviewed and analyzed.
      - incidental brain activity
        
        This view holds that dreaming is just a by-product of sleep that has no essential purpose or meaning.