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Mysteries of SleepSeries 1Episodes Episode guide
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Dreaming
2/3What happens when signals in the brain misfire and dreams become terrifying nightmares?
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Sleep Deprivation and Insomnia
If we don't snooze, we lose. How badly does lack of sleep affect our mind and our body?
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Sleepwalking
Bizarre bedtime behaviours that include a woman who rides her motorbike while asleep.
