Daylight saving time is an artificial way of adjusting time, but nothing changes when the sun rises and sets.
Humans have natural cycles for when they are active and for when they sleep. Modern work and school schedules interfere with this, and more studies are showing why there's a possible health risk.
The loss of even an hour of sleep is hard on the body, and kids are particularly vulnerable.
One of the most dreaded times of the year occurs this weekend, when Americans spring forward - and lose an hour of sleep in so doing. Two doctors who are sleep specialists offer some survival tips.
The twice-annual time changes affect people similar to the way jet lag does. It’s time to abolish Daylight Saving Time.
Research shows that daylight-saving time changes do more harm than good. It's time to abolish the practice.
Changing to daylight saving time can impact our mood, our risk of heart attack and how much exercise we get.
Daylight saving time begins this weekend, which means many of us will get an hour less sleep. But the health effects go beyond sleep – and can last two weeks or more. Here's what the research says.
Waking an hour earlier on Monday won’t make you much more dangerous.
Overseas research says putting the clock forward hurts the financial markets. But not in Australia, according to a real-world study along the Queensland-NSW border.
Could too much light in the evening affect children’s sleep? Recent research suggests that it could.
A recent study suggested that a chemical responsible for getting the body ready for sleep was suppressed in children by too much evening light. A circadian rhythm expert explains the dangers.
Night owls, or people who have a hard time waking up in the morning, face health risks as a result.
Pity the poor night owls of the world, who already must adjust to a life that doesn't align with their natural sleep patterns. Now it appears that being a night owl even raises the risk of death.
Sleep affects sex, and sex affects sleep. It’s important to pay attention to both.
Research demonstrates a two-way relationship between sleep problems and sexual problems, as well as between satisfying sex and sound sleep. If you want better sex, you need better sleep.
As many as 70 million Americans may not be getting enough sleep. Men get fewer hours of sleep than women.
Few things seem to matter to our health as much as a good night’s sleep, but fewer and fewer of Americans are getting it. A neurologist explains why sleep is so important.
A New York engineer is wheeled away in December 2013, after a train he was driving crashed. Lack of sleep could have been a factor.
AP Photo/Robert Stolarik
Most Americans dread the time switch to daylight saving time, which results in a loss of an hour's sleep. The downside is more serious than that – it can lead to workplace injuries and traffic fatalities.
Falling back or staying put?
Advocates say daylight saving time saves energy and wins wars. But studies show that injuries and illnesses rise when the clocks change. Some states may end the practice; others could make it permanent.
The clock change's impact on commuter numbers highlights the need to use street lighting more effectively.
Lighter mornings set off a vital biological chain reaction that sets you up for the day.