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Theresa Fisher

Theresa Fisher is VW's science editor. She does her best sleeping in the early morning light and her best thinking late at night.

Did Owls and Larks Evolve Because Sleeping in Shifts Promoted Survival?
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The first study to test the "sentinel hypothesis" in humans.
The Longer Immigrants Live in America, the More Their Sleep Suffers
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And other Insight from a new paper examining the relationship between sleep duration and birthplace.
Is a Sense of Purpose the Way to Solid Sleep?
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A recent study supports the health benefits of a meaningful existence.
Why You're Most Likely to Take Risks When You're Only a Little Bit Tired
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Is moderate sleepiness the sweet spot for living on the edge?
Why Aren't Pets Part of the Co-Sleeping Conversation?
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A new paper says sharing beds with dogs and babies raise a lot of the same questions.
Nope, Sleep Restriction Isn't New
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But it is effective.
Night Owl-ness Peaks at 19, and Other News in Sleep
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Your weekly nightcap.
Moderately Tired People Take the Most Risks and Other Research from SLEEP 2017
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Your weekly nightcap, SLEEP 2017 edition.
Sleep Experts Share Highlights from 2017 SLEEP Conference
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Thousands of researchers headed to Boston for SLEEP 2017. Here’s what 9 of them found most fascinating.
Sleep Loss Makes the Brain Cannibalistic, and Other News in Sleep
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Your weekly nightcap.