The Stages of Sleep

For a really great interactive online chart exploring the different stages of sleep, visit: http://www.pbs.org/wgbh/nova/body/sleep-memory.html  and click on "LAUNCH INTERACTIVE". What happens in your brain as you cycle through the various stages of sleep, and how does this activity affect learning and memory? See what scientists are learning about REM (rapid-eye movement) sleep and other phases, and explore [...]

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