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Back to Sleep & Dreams
Sleep Fundamentals
How sleep works and why we need it
What are the stages of sleep and what happens in each?
Why do we need sleep?
How much sleep do adults actually need?
What is the circadian rhythm and how does it affect sleep?
What is REM sleep and why is it important?
What is non-REM sleep?
How does sleep change with age?
What happens in the brain during sleep?
What is the role of melatonin in sleep?
How long is a complete sleep cycle?
What is deep sleep and why is it important?
Can you make up for lost sleep?
Sleep Fundamentals | Sleep & Dreams