sleep是什么意思？

My memory is like a library of video tapes, walk-throughs of every day of my life from waking to sleeping, he explains.

What do animals do? There are three main ways that animals survive the cold in winter: sleep, adapt or migrate.

One of the creatures made a dramatic appearance by moving on to the head of the team leader as he slept.

You probably think college students are experts at sleeping, but parties, preparations for tests, personal problems and general stress can wreck a student’s sleep habits, which can be bad for the body and the mind.

Texas Tech University is even offering a class  called Improving Your Sleep Habits.

Students who don’t get enough sleep have poor attendance and lower grades.

So if you really want to do your job well, don’t forget to get some sleep.

People suffering from sleep loss are at an increased risk from obesity, psychological problems and car crashes.

On top of all that, a new study published in the journal Learning and Memory finds you are probably better off sleeping than making last- minute preparations for a test.

How can I help you?The massive decline in sleep happened so slowly and quietly that few seemed to notice the trend.

But they did much better after getting a good night sleep.

They want to get sufficient sleep.

They sleep longer than people elsewhere.

They get less sleep on public holidays.

They don't sleep much on weekends.

They are involved in a sleep research.

The worst night for sleep in the U.K. was the night of the England-Italy match on June 14.

The World Cup is also chiefly responsible for sleep deprivation ( ' , 剥夺 ).

Similarly, Americans' late nights, late mornings, and longest sleeps fall on three-day weekends.

It should be made clear that not everyone has a device to record their sleep patterns; in some of these nations, it's likely that only the richest people do.

It is important to study our sleep patterns.

If the most health-conscious among us have such deep swings in our shut-eye levels throughout the year, how much sleep are the rest of us losing? They are culture-related.

From data collected, it seems the things that cause us to lose the most sleep, on average, are sporting events, time changes, and holidays.

Few people really know the importance of sleep.

Everybody sleeps, but what people stay up late to catch—or wake up early in order not to miss—varies by culture.

Canada got the least sleep of the year the night it beat Sweden in the Olympic hockey ( ' , 冰球 ) final.

Average people probably sleep less than the rich.

Around the world, people changed sleep patterns thanks to the start or end of daylight savings time.

And people who elect to track their sleep may try to get more sleep than the average person.

"The link between sleep and health, and bad sleep and disease is becoming clearer and clearer," says Lawrence Epstein, a sleep expert at Harvard University.

A University of Chicago study shows people who sleep well live longer.

An officer then shot an arrow to put it to sleep.

Blood pressure and heart rate are typically at their lowest levels during sleep.

Canada got the least sleep of the year the night it beat Sweden in the Olympic hockey (冰球) final.

During deep sleep, the participants' brains behaved in a similar manner seen in birds and dolphins.

During deep sleep,the participants' brains behaved in a similar manner seen in birds and dolphins.

Eventually, my cough got so much worse that I couldn't sleep at night, so I decided to give it a try.

For example, sleep duration has declined from some eight hours in the 1950s to seven in recent years.

If a person stays in the same room the following night they tend to sleep more soundly.

If the most health-conscious among us have such deep swings in our shut-eye levels throughout the year, how much sleep are the rest of us losing?

New evidence shows why getting enough sleep is a top priority.

People who sleep less tend to have higher blood pressure, heart attack, diabetes, weight gain and other problems.

She also knew from previous work conducted on birds and dolphins that these animals put half of their brains to sleep at a time so that they can rest while remaining alert enough to avoid predators.

She worked out that, if the left hemisphere was staying alert to keep guard in a strange environment, then it would react to the irregular beeps by stirring people from sleep and would ignore the regularly timed ones.

So if you really want to do your job well, don't forget to get some sleep.

Some animals, such as bears, frogs and snakes, sleep all winter.

Students who don't get enough sleep have poor attendance and lower grades.

Texas Tech University is even offering a class called "Improving Your Sleep Habits".

The massive decline in sleep happened so slowly and quietly that few seemed to notice the trend.

The World Cup is also chiefly responsible for sleep deprivation.

There are many things that can cause confusion and memory loss, including health problems like temporary stoppage of breathing during sleep, high blood pressure, or depression, as well as medications like antidepressants.

They sleep very deeply and need little or no food.

To prepare for this before winter, these animals eat extra food to become fat, which gives them the energy they need while they sleep.

You probably think college students are experts at sleeping, but parties, preparations for tests, personal problems and general stress can wreck a student's sleep habits, which can be bad for the body and the mind.

Mothers have been warned for years that sleeping with their newborn infant is a bad idea, because it increases the risk that the baby might die unexpectedly during the night.

But now Israeli researchers are reporting that even sleeping in the same room can have negative consequences: not for the child,but for the mother.

They slept six hours a night or less.

The large base he leads resembles a snowed-in college campus on holiday break, with the capacity to sleep more than 10 times the 13 people who were staying on through the Antarctic winter.

Telepressure was also correlated with sleeping poorly and missing work.

Less than an hour away by snowmobile, Chinese labourers have updated the Great Wall Station, a vital part of China's plan to operate five bases on Antarctica, complete with an indoor badminton court and sleeping quarters for 150 people.

But a new study finds that there's another group of adolescents who are in nearly as much danger of experiencing the same psychiatric symptoms: teens who use tons of media, don't get enough sleep and have a sedentary ( ' , 不爱活动的 ) lifestyle.

After six months, the employees who participated in ROWE reported reduced work-family conflict and a better sense of control of their time, and they were getting a full hour of extra sleep each night.

A study of employees at health insurance provider Aetna revealed that roughly one quarter of those taking in-office yoga and mindfulness classes reported a 28% reduction in their stress levels and a 20% improvement in sleep quality.

83% of workers say they're stressed about their jobs, nearly 50% say work-related stress is interfering with their sleep, and 60% use their smartphones to check in with work outside of normal working hours.

You've now heard it so many times, you can probably repeat it in your sleep.

Excuse me, can I get a ticket for a sleeping compartment on this train?

Or if you do climb higher sooner, come back down to a lower height when you sleep.

When you reach your top height, do light activities rather than sleep too much

I'd like to go camping with you this weekend, but I don't have a sleeping bag.

She can lend the man a sleeping bag

Doctor, I haven't been able to get enough sleep lately, and I'm too tired to concentrate in class.

83% of workers say they're stressed about their jobs, nearly 50% say work-related stress is interfering with their sleep, and 60% use their smartphones to check in with work outside of normal working hours.

A study of employees at health insurance provider Aetna revealed that roughly one quarter of those taking in-office yoga and mindfulness classes reported a 28% reduction in their stress levels and a 20% improvement in sleep quality.

A study published last year in The American Journal of Clinical Nutrition found that people who sleep more tend to eat less unhealthy food than their peers who don't get as much rest.

After six months, the employees who participated in ROWE reported reduced work-family conflict and a better sense of control of their time, and they were getting a full hour of extra sleep each night.

And it's not a more efficient sleep, not like they're compressing relatively more value out of their hours.

And lack of recovery一whether by disrupting sleep with thoughts of work or having continuous cognitive arousal by watching our phones一is costing our companies $62 billion a year in lost productivity.

As it is, sleep is so undervalued that getting by on fewer hours has become a badge of honor.

But, as the human study suggests, another reason for dolphins keeping their eyes open during sleep is that they can look out for predators while asleep.

For example, dolphins, as well as other marine animals, shut down one hemisphere of the brain when they go to sleep.

Half of your brain stays alert and prepared for danger when you sleep in a new place, a study has revealed.

Infants, on the other hand, didn't appear to have worse sleep whether they slept in the same or different room from their mothers.

It is yet a challenge to explain the cause-and-effect relationship between sleep and nutrition.

It shapes the way our bodies operate, too, and sleep is at the intersection of those.

It was specifically observed that the left side of the brain was more active during deep sleep.

It's no surprise, then, that more than half of American adults don't get the 7 to 9 hours of shut-eye every night as recommended by sleep experts.

Mothers who slept in the same room as their infants, whether in the same bed or just the same room, had poorer sleep than mothers whose babies slept elsewhere in the house: They woke up more frequently, were awake approximately 20 minutes longer per night

Now, instead of swimming upstream, we relax, sleep, watch movies, or listen to music.

Other studies have found that even infants in East Asia sleep about an hour less than European infants, so we're trying to figure out how culture shapes the way you sleep.

right now, to reduce the risk of sudden infant death syndrome, the American Academy of Pediatrics recommends that mothers not sleep in the same bed as their babies, but sleep in the same room.

That means they wake up hungry, they are hungry all day, and they go to sleep hungry.

That suggests that catch - up sleep may undo some but not all of the damage that sleep 32 deprivation causes, which is encouraging, given how many adults don't get the hours they need each night.

The most common topics they discussed included kids' sleep, nutrition, discipline, behavior problems and day care and preschool.

The relationship between getting more sleep and making better food choices is well-documented.

We're still in the exploratory stages of this project, although what's noteworthy is that East Asians on average sleep about an hour and half less each night than North Americans do.

We've also started to look at how culture shapes sleep.

When Liu, the UCLA sleep researcher and professor of medicine, brought chronically sleep-restricted people into the lab for a weekend of sleep during which they logged about 10 hours per night, they showed improvements in the ability of insulin to process

When the researchers repeated the laboratory experiment on the second and third nights they found the left hemisphere could not be stimulated in the same way during deep sleep.

Whether or not we can catch up on sleep — on the weekend, say — is a hotly debated topic among sleep researchers.