Circadian Rhythms News
How the End of Daylight Saving Time Can Affect Health
This Sunday, nearly everyone in the U.S. will need to set back their clocks one hour as daylight saving time comes to an end. While this means an extra hour of sleep, surprisingly it can also take a toll on health. An extra hour of sleep can be a welcome respite for many people. But it can also
Daylight Savings Time: Tricks for Remembering to Set Clocks Back
ABC News' Dr. Jennifer Ashton reports the latest on this year's time adjustment.
Timeline of Major Train Accidents in the US Since 2000
Today's NJ Transit train crash in Hoboken, New Jersey, that killed one woman and injured 108 others has become the latest deadly episode in our nation's rail system. The following list highlights some of the major train crashes in the United States from 2000 until now. March 17, 2001 With 241
Life in Space: A Conversation With Astronauts Aboard the International Space Station
ABC News' Chief Health and Medical Editor Dr. Richard Besser interviews Kathleen Rubin and Station Commander Jeff Williams from the International Space Station about the science of being in space.
How the U.S. swimmers took over Rio with a true team effort
RIO DE JANEIRO -- On the day before these Olympics even began, U.S. swimming assistant coach Greg Meehan gathered the 22 women on his team on a patch of grass outside the American building in the Olympic village. He handed out a bunch of small American flags. He gave a brief history lesson about
What Science Says About the Best Time of Day to Break an Olympic Record
As the five members of the U.S. gymnastics team flipped, twirled and defied the laws of gravity to win their gold medal on Tuesday afternoon, they may have been given a boost by an unlikely source: their circadian rhythm. Multiple studies have found that the circadian rhythm -- a kind of biological
Scientists Break Down Why Flying East Is Worse for Jet Lag
When it comes to flying, many avid travelers may notice jet-lag symptoms are particularly bad when heading east instead of west. That may seem to be a figment of your imagination, but it's actually a known phenomenon confirmed by science. Today researchers from the University of Maryland's
How to Become the Type of Person Who Works Out in the Morning
You plan a workout for the evening, but then something comes up—a happy hour, a deadline for work, or maybe even a Tinder date. And there goes your exercise for the day. If this keeps happening to you, there's a logical solution: shift your workout schedule to the morning. But…that’s easier said
'10% Happier': Arianna Huffington
The co-founder and editor-in-chief of The Huffington Post talks about her new book, "The Sleep Revolution," with ABC News' Dan Harris.