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 Some People May Be Harder Hit by Daylight Saving Time
A clock is shifted one hour ahead at the start of daylight saving time.
March 7th, 2015
The start of daylight saving time may be particularly hard for people who are unhealthy, a new study suggests.
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Human Hibernation: Snowy States Cause Longer Slumbers
This map of the U.S. shows the regions where people got the most (northern states) and least (southern states) amount of sleep.
February 24th, 2015
People in snowier states appear to sleep for a little longer during winter months than those in sunnier states.
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How Much Sleep Should You Get? New Recommendations Released
A woman sleeps in her bed.
February 3rd, 2015
New guidelines from the National Sleep Foundation slightly change the recommended sleep ranges for children and teens.
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Watch Out: Daylight Saving Time May Cause Heart Attack Spike
woman having a heart attack in bed
March 7th, 2015
As people set their clocks forward an hour for daylight saving time this Sunday (March 8), they may also want to take extra care of their heart. That's because people tend to have more heart attacks on the Monday following spring's daylight saving time.
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Sleepless in High School: Teens Getting Less Shut-Eye
A teen falls asleep during class.
February 16th, 2015
Teens are getting even less sleep than they used to, new research finds.
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For Teens, Falling Asleep Gets Harder with More Screen Time
Teenager playing with electronics on bed
February 2nd, 2015
Teenagers who while away the hours on an electronic device — whether it's a computer, cell phone, tablet or TV — tend to have more problems with sleeping at night, a new study finds.
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Actor Alan Alda Challenges Scientists to Explain 'What is Sleep?'
Girl sleeping in her bed
December 2nd, 2014
Attention, scientists: 11-year-olds everywhere would like to know, "What is sleep?"
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Hit the Sack! People Who Get a Good Night's Sleep Are Happier
A young woman sleeping.
March 2nd, 2015
People's happiness appears to be closely linked with how much sleep they get.
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Surveys Reveal the Most Common 'Sleep Thief'
A woman sleeps in her bed.
December 15th, 2014
When people don't get enough sleep, it's usually because they sacrifice snooze time for hours at work or commuting to the office, a new study suggests.
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