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While researching his book, Breath, James Nestor participated in a study in which his nose was completely plugged for 10 days, forcing him to breathe solely through his mouth. "I felt awful," he says.
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A boom in technology promising to improve sleep has an ironic side effect: orthosomnia. Thanks to sleep trackers, people get so obsessed with perfect sleep that they are losing sleep over it.
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A study of 11 sleeping brains sheds some light on the mysterious link between sleep problems and Alzheimer's disease. The flow of cerebrospinal fluid through the brain appears to be the key.
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The number of workers getting less than seven hours of sleep a night is rising. Stress and our culture of constant connection may be to blame.
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Research yet again shows teens are glued to their phones to an unhealthy degree. In fact, they may be choosing social media over sleep. But maybe it's not all sad face, researchers say.
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Also this week, the Kentucky Supreme Court struck down a bill that prompted thousands of teachers to protest this spring.
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American teens are chronically sleep deprived, in part because of early school start times. But how much difference can a later start make? As Seattle's school district found out, it can help a lot.
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Though teenagers need about nine hours of rest a night, most get only seven and are suffering. A new survey suggests their parents are struggling, too. Here's how to improve the quality of teen sleep.
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"Human beings are the only species that deliberately deprive themselves of sleep for no apparent gain," says sleep scientist Matthew Walker. His new book is Why We Sleep.
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After hearing recordings of herself giggling and cheerfully talking in her sleep, Tanya Marquardt, who always thought of herself as tough and brooding, begins to connect with her other self.