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Can Any Animal Survive Without Sleep?Scientists have yet to find a truly sleepless creature. But is sleep really necessary for survival?
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Here's How Poor Sleep May Hurt Your HeartA new study may have uncovered why a poor night's sleep is bad for your heart and blood vessels.
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How Did People Wake Up Before Alarm Clocks?How did people wake up before the invention of modern alarm clocks?
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Can Burger King's 'Nightmare King' Really Give You Bad Dreams?A new, limited-time-only burger at Burger King has a peculiar selling point: It's supposed to give you nightmares.
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Your Dreams May Come from These Two GenesWithout these genes, there's no REM sleep.
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Why Are Pregnant Women Told to Sleep on Their Left Side?Doctors have a very good reason for this recommendation.
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'Contagious' Loneliness Could Follow Poor SleepSleep deprivation could contribute to loneliness, and the feeling is "contagious," researchers say.
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Is Sleeping with a Fan On Actually Bad for Your Health?Here's what you should know about sleeping with a fan on at night.
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Why Can't We Remember Our Dreams?In waking life, such a case of quickly forgetting recent experiences would surely land you in a doctor's office. With dreams, however, forgetting is normal. Why?
