parema/Getty Images

Half Your Brain Stands Guard When Sleeping In A New Place

  • Download
  • <iframe src="https://www.npr.org/player/embed/474691141/475161635" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Sleep Deprived: We're Recharging Our Phones, But Not Ourselves

  • Download
  • <iframe src="https://www.npr.org/player/embed/473406980/473623581" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript
Katherine Du/NPR

Sleep Munchies: Why It's Harder To Resist Snacks When We're Tired

  • Download
  • <iframe src="https://www.npr.org/player/embed/468933610/468937764" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Jeffrey Iliff (left), a brain scientist at Oregon Health & Science University, has been studying toxin removal in the brains of mice. He'll work with Bill Rooney, director of the university's Advanced Imaging Research Center, to enroll people in a similar study in 2016. Courtesy of Oregon Health & Science University hide caption

toggle caption Courtesy of Oregon Health & Science University

Lack Of Deep Sleep May Set The Stage For Alzheimer's

  • Download
  • <iframe src="https://www.npr.org/player/embed/460620606/461878759" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Rough night? Depending on specific tweaks to their genes, some fruit flies have trouble falling asleep, and others can't stay asleep. Getting too little shut-eye hurts their memory. David M. Phillips/Science Source hide caption

toggle caption David M. Phillips/Science Source

How Research On Sleepless Fruit Flies Could Help Human Insomniacs

  • Download
  • <iframe src="https://www.npr.org/player/embed/441159913/441371175" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Gulping down coffee to stay awake at night delays the body's natural surge of the sleep hormone melatonin. Hayato D./Flickr hide caption

toggle caption Hayato D./Flickr

Caffeine At Night Resets Your Inner Clock

  • Download
  • <iframe src="https://www.npr.org/player/embed/440612648/440914184" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

People who don't get enough sleep show higher levels of inflammation, say scientists who study colds. Smoking, chronic stress and lack of exercise can make you more susceptible to the viruses, too. Frederic Cirou/PhotoAlto/Corbis hide caption

toggle caption Frederic Cirou/PhotoAlto/Corbis

Sleep More, Sneeze Less: Increased Slumber Helps Prevent Colds

  • Download
  • <iframe src="https://www.npr.org/player/embed/436385137/436525824" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Michael Arnott, of Cambridge, Mass., says he used to have trouble staying awake on long drives. Sleep specialists discovered he has obstructive sleep apnea, though not for the most common reasons — he isn't overweight, and doesn't smoke or take sedatives. M. Scott Brauer for NPR hide caption

toggle caption M. Scott Brauer for NPR

Snooze Alert: A Sleep Disorder May Be Harming Your Body And Brain

  • Download
  • <iframe src="https://www.npr.org/player/embed/432764792/434209453" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Sleepy in the day and wide awake at night? Give the screen a rest. Guido Mieth/Getty Images/Flickr RM hide caption

toggle caption Guido Mieth/Getty Images/Flickr RM

One More Reason To Reach For A Paper Book Before Bed

  • Download
  • <iframe src="https://www.npr.org/player/embed/372914271/373303823" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

About 40 percent of high schools start before 8 a.m., which contributes to chronic sleep deprivation among teens, according to the American Academy of Pediatrics. Chris Waits/Flickr hide caption

toggle caption Chris Waits/Flickr
Maria Fabrizio for NPR

Skimping On Sleep Can Stress Body And Brain

  • Download
  • <iframe src="https://www.npr.org/player/embed/332058265/332205225" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Teenagers' sleep patterns may be a clue to their risk of depression. iStockphoto hide caption

toggle caption iStockphoto
Daniel Horowitz for NPR

Healthful Habits Can Help Induce Sleep Without The Pills

  • Download
  • <iframe src="https://www.npr.org/player/embed/250256086/251462020" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Solid friendships can help buffer life's stress. iStockphoto hide caption

toggle caption iStockphoto

Teens Who Feel Supported At Home And School Sleep Better

  • Download
  • <iframe src="https://www.npr.org/player/embed/248885401/248934802" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript