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Read about sleep and insomnia, the different types of sleep disorder, and the effects of lack of sleep to your health.

Sleep loss is taking a toll on our physical and emotional health, and on our nation’s highways.

Dec 03, 2015 · Normal sleep is divided into non–rapid eye movement (NREM) and rapid eye movement (REM) sleep. NREM sleep is further divided into progressively deeper

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One of the most common dyssomnia disorders in older adults is sleep apnea. This condition is characterized by temporary loss of breath for up to 60 seconds during

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Explore the National Sleep foundation, your source for sleep research and education from sleep disorders and problems to polls and maximizing energy.

Sleep deprivation may be undermining teen health. Lack of sufficient sleep–a rampant problem among teens–appears to put cents at risk for cognitive and

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Not getting enough sleep can lead to illness, obesity, poor grades, depression, and daytime sleepiness. WebMD explains the importance of adequate sleep for teens.

You know lack of sleep can make you grumpy and foggy. You may not know what it can do to your sex life, memory, health, looks, and ability to lose weight. Here are 10

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Read about the stages of sleep and what happens with sleep deprivation and sleep disorders. Read about sleep disturbance including sleep apnea and sleep paralysis.

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Sleep Quiz: What do you know about sleeping and sleep hygiene? Test your IQ of sleep, including stages, dreams, nightmares, disorders, sleepwalking, sleep paralysis