Daylight Saving Time

Changing our clocks forward an hour each year may seem a simple task, but the effects on your body, not to mention your pets' bodies, can be more complicated. Here's what you need to know about the time change.
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Why Sleep? Why Dream?
a whale holding up a flying airplane like a balloon
November 20th, 2015
When you sleep, where does your consciousness go?
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Fitful Sleep Is Worse Than Staying Awake
sleep, woman, insomnia
October 30th, 2015
Facing multiple nights of fitful sleep is worse for people's well-being than getting little sleep, new research suggests.
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Caffeine Confuses Your Body's Internal Clock, Study Suggests
Alarm Clock
September 16th, 2015
Drinking a cup of coffee at night may be bad for sleep in more ways than one: Caffeine not only keeps you alert but also affects the body's internal clock.
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8-Hour Sleepers More Likely to Be Heart Healthy
woman, insomnia, sleep, bed
November 12th, 2015
People who get enough sleep are more likely to hit other heart health targets, too.
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The Spooky Effects of Sleep Deprivation
A woman lays awake in bed, looking at a clock.
October 27th, 2015
Scary things can happen when you don't get enough sleep.
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Social Media Use in Teens Linked to Poor Sleep, Anxiety
Three teen girls look at a computer together.
September 11th, 2015
The pressure to be available 24/7 on social media has negative effects on teens' mental health, a new study finds.
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Why Your Eyes Dart Around When Dreaming
a whale holding up a flying airplane like a balloon
August 12th, 2015
People are literally seeing images in their dreams when they undergo the rapid eye movements characteristic of certain stages of sleep, new research suggests.
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Fall Back? Why Daylight Saving Time Is So Confusing
Gold Autumn with sunlight and sunbeams / Beautiful Trees in the forest
October 31st, 2015
On Sunday, Nov. 1, it's time to wind back the clocks. Or is that forward? Wait, are we losing an hour, or gaining one? Here's why daylight saving time is so confusing. Turns out, part of the frustration is biological.
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Modern Hunter-Gatherers Probably Get Less Sleep Than You Do
A man sleeps with his smartphone next to his bed.
October 15th, 2015
People who live hunter-gatherer societies in rural Africa and South America actually get less sleep than people who live in modernized, industrial societies, a new study finds.
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Poor Sleep May Increase Heart Disease Risk
sleep, woman, insomnia
September 10th, 2015
When it comes to sleep and heart health, it looks like there's a sweet spot.
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