Being a pessimist or an optimist may affect your sleep.

Being a pessimist or an optimist may affect your sleep

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Mysteries of Sleep

Scientists are peering more deeply into the sleeping brain than ever before, discovering just how powerful sleep can be, playing a role in everything from memory retention and emotional regulation to removing waste from our brains.

A Patient's Guide to Sleep Disorders

Sleep disorders fall into these seven groups: Insomnia; Sleep Related Breathing Disorders (apnea); Insomnia; Narcolepsy; Circadian rhythm sleep-wake disorders; Parasomnias; Restless Legs Syndrome.