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DeMent’s 1999 book, The Promise of Sleep, explains that healthy sleep provides:
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Our brain waves will normally shift to a lower vibrational frequency as we:
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The National Sleep Foundation reports that most American adults experience:
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As a result of experiments conducted at the Max Planck Institute, for many years it was mistakenly believed that:
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The normal sleep and wake cycle is known as:
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Deep sleep is the time when we are able to:
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While the invention of the light bulb has allowed for many technological advances, it has also:
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The aging process normally requires that we need __________ sleep at night.
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Relaxation, meditation, and breathwork are all modalities that can help with difficulties such as:
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According to Dement, the human biological clock is closely connected to: