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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.

This Amount of Sleep Separates the Healthy from the Unhealthy
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And the magic number is far smaller than you might think.
Why Can't Insomniacs Tell How Much They've Slept?
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A new study sheds some light on misjudging sack time.
Are Americans Really Sleeping More Than Ever?
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A new survey says we’re sleeping more than we should. Here’s what might be wrong with the numbers.
Introverts Aren't the Only Ones Who Experience Social Fatigue
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Being social takes its toll a few hours after the party ends.
How to Keep Your Dog From Freaking Out on the Fourth of July
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Independence Day fireworks can be hell for your furry best friend. Here's how to ensure they rest peacefully when the rockets go boom.
To Understand Sleep and Memory, Scientists Look to the Heart
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Could the autonomic nervous system explain how napping improves recall?
Study: Morning People Overestimate Their Emotional Intelligence
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Check your ego, early-morning types.
Sleeping in Space Is Hard. But We're Getting Better at It
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Space missions taught us that humans could, in fact, log Zzzs in space. Unfortunately, those Zzzs aren't exactly grade-A. Changes, however, are on the horizon.
Sorry, Dudes: Napping Only Seems to Improve Working Memory in Women
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Upcoming research suggests a petite snooze has sex-specific benefits.
The Summer Solstice is the Perfect Time to Reset Your Body Clock
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When it comes to sleep, summer is the time to seize the day. Literally.