The nightly cycle of the brain
Why do we dream
Taking control of the dream
Dreams across history and culture
What toxic protein linked to Alzheimer's disease is washed away during deep sleep?
misslily Match brainwaves to sleep stages to discover how your brain processes memories and creates dreams.
misslily The threat simulation theory suggests dreams are virtual reality training grounds for surviving real-world threats.
What is the name of the brain's waste-clearing system that activates during deep sleep?
misslily Sleep researcher Matthew Walker describes dreaming as overnight therapy that strips painful emotions from your memories.
According to researcher Matthew Walker, which stress chemical drops to zero during REM sleep?
What percentage improvement in memory tasks can a night of dreaming sleep provide?
Memory consolidation: Sleeping on a problem actually works, as dreaming helps the brain find creative connections between unrelated pieces of information.
Which theory suggests that dreams are a virtual reality training ground for dangerous situations?
Which hypothesis suggests dreaming helps prune weak brain connections to save energy?
A series of thoughts, images, and sensations occurring in a person's mind during sleep. In 1977, Allan Hobson and Robert McCarley proposed that these nightly visions stem from random brainstem activity.