Dreaming refers to the mental activity that occurs during sleep, characterized by vivid and often bizarre experiences. It is most commonly associated with rapid eye movement (REM) sleep.
Related terms
REM Sleep: The stage of sleep where most dreaming occurs, characterized by rapid eye movements and increased brain activity.
Sleep Cycles: The recurring patterns of different stages of sleep, including REM sleep where dreaming takes place.
Lucid Dreaming: A type of dream where the dreamer becomes aware that they are dreaming and can sometimes control or manipulate the dream environment.