I've found some facts && I just think some of them are like really... cool. haha.
As well as being the name of a famous band, REM stands for "rapid eye movement", so called because our eyes can be seen to move under our eyelids.
During REM sleep we are almost totally paralysed. Only the heart, diaphragm and muscles of the intestines, blood and eyes are not affected by this paralysis.
REM sleep is so called because our eyes can be seen to move under our eyelids.
REM is a very deep kind of sleep and we are usually difficult to wake in this phase. However, some light sleepers can be woken with the slightest of sounds even during this kind of sleep.
REM sleep starts about 90 minutes after we fall asleep and occurs in bursts throughout the night, adding up to around 2 hours per night in total.
We dream in any stage of sleep; probably continuously.
REM dreams are usually fantastic or bizarre, whereas non REM dreams are more mundane and will often relate to everyday worries or thoughts (such as where you left your keys).
Some scientists believe that our eye movement during REM sleep relates to what we are "seeing" in our dreams.
It might be that we dream to remember important memories or to clear our minds of unimportant information. Or it might be that dreams serve no purpose at all and are simply an effect of sleep and consciousness.
The average adult needs a total sleep time of 7 to 9 hours per day - it is not true that older people need less sleep however over 50% of people over 64 years old suffer from some type of sleep disorder.
People can take cat naps with their eyes open without even being aware of it.
Dreaming that you are sleeping indicates peace of mind
REM sleep may help developing brains to mature
12% of people only dream in black and white
The average person spends a total of about six years dreaming - 2 hours each night - although one third of our lives is spent sleeping
Sleep may be disturbed during the night but the mind interprets the disturbance and makes it a part of a dream in order to ensure continued sleep but the dreamer will awaken when danger threatens or the dream causes shock.
Five minutes after the end of the dream, 50% of the content is forgotten, after ten minutes 90% is forgotten
The record for the longest period without sleep is 18 days, 21 hours, 40 minutes during a rocking chair marathon.
Our brain waves are more active when we are dreaming than when we are awake
British Ministry of Defense researchers have been able to reset soldiers' body clocks so they can go without sleep for up to 36 hours
Sleeping for over 9 hours per night (for an adult) is just as bad as sleeping 6 hours or less
The most common emotions experienced in dreams are anxiety and fear
A study showed that 42% of people felt they had had a dream about something that later came true
Scientists have not been able to explain a 1998 study
showing a bright light shone on the backs of human knees can reset the brain’s sleep-wake clock
Toddlers do not dream about themselves. They do not appear in their own dreams until the age of 3 or 4
De JA Vu in dreams occurs more often in females than males.
If you are snoring, then you cannot be dreaming
Dreamers who are awakened right after REM sleep are able to recall their dreams more vividly than those who slept through the night until morning
Anything less than five minutes to fall asleep at night means you're sleep deprived. The ideal is between 10 and 15 minutes, meaning you're still tired enough to sleep deeply, but not so exhausted you feel sleepy by day.
Teenagers need as much sleep as small children (about 10 hrs)
Experts say one of the most alluring sleep distractions is the 24-hour accessibility of the internet.
(:
I found these facts around the internet(:
Sorry if this has been posted before. :D x
Dreaming that you are sleeping indicates peace of mind
Toddlers do not dream about themselves. They do not appear in their own dreams until the age of 3 or 4
Since no one really understands dreams, the first one can't really be called a fact. And the second one, how do they know that? A baby can't tell you what they are dreaming of.
There is also an REM behavior disorder where in the person does not become paralyzed during stage four (REM cycle) of sleep. The person can then act out the events of their sleep - often with open eyes - sometimes basic and non-threatening, but there have been cases of assault and dangerous behavior.
Don't be fooled by my smooth skin. The deepest scars are the ones unseen.
Remember compliments you received, forget the insults. If you succeed in doing this, tell me how..~ Baz Lurhman.
Letting it get to you - You know what that's called? Being alive. Best thing there is. Being alive right now that's all that counts. ~ Doctor Who "The Doctors Wife" 06.November.2011
Since no one really understands dreams, the first one can't really be called a fact. And the second one, how do they know that? A baby can't tell you what they are dreaming of.
Yes, but I'm still a bit dubious. It can take a child that long to be able to recognise themselves in a mirror or in a picture, so they may be dreaming about themselves but not know it.
Yes, but I'm still a bit dubious. It can take a child that long to be able to recognise themselves in a mirror or in a picture, so they may be dreaming about themselves but not know it.
In psychology we watched a documentary about a guy who did this radio show for 8 days straight with no sleep, not even a few minutes here and there. Eventually he started hallucinating every 90 minutes (same pattern as REM sleep) and after the 8 days his personality permanently changed.
Isn’t it funny how day by day nothing changes but when you look back, everything is different…
you once called your brain a hard drive, well say hello to the virus.
I want to kiss the bottom of the ocean before I burst through its surface into the sunlight, otherwise I will always be wondering about what was left unseen at the bottom
i'm tired of chasing my dreams. i'm just gonna ask where they're going, and hook up with them later.
The person who has so far gone the longest without sleep is (unless somebody else has done it in the recent past) Randy Gardner. I just remember him because he had one of the best names I ever remember during A-level.
Really cool.
I think babies can recognise them selves... My nephew is 7 months and he can see himself in the mirror and is fascinated by it... Im pretty sure he gets it.
Doing what you love can be the loneliest time of your life
A climbers day starts at the crux, getting out of bed.
40 FACTS ABOUT SLEEP YOU PROBABLY DIDN'T KNOW... (OR WERE TOO TIRED TO THINK ABOUT)
-The record for the longest period without sleep is 18 days, 21 hours, 40 minutes during a rocking chair marathon. The record holder reported hallucinations, paranoia, blurred vision, slurred speech and memory and concentration lapses.
- It's impossible to tell if someone is really awake without close medical supervision. People can take cat naps with their eyes open without even being aware of it.
- Anything less than five minutes to fall asleep at night means you're sleep deprived. The ideal is between 10 and 15 minutes, meaning you're still tired enough to sleep deeply, but not so exhausted you feel sleepy by day.
- A new baby typically results in 400-750 hours lost sleep for parents in the first year
- One of the best predictors of insomnia later in life is the development of bad habits from having sleep disturbed by young children.
- The continuous brain recordings that led to the discovery of REM (rapid eye-movement) sleep were not done until 1953, partly because the scientists involved were concerned about wasting paper.
- REM sleep occurs in bursts totalling about 2 hours a night, usually beginning about 90 minutes after falling asleep.
- Dreams, once thought to occur only during REM sleep, also occur (but to a lesser extent) in non-REM sleep phases. It's possible there may not be a single moment of our sleep when we are actually dreamless.
- REM dreams are characterised by bizarre plots, but non-REM dreams are repetitive and thought-like, with little imagery - obsessively returning to a suspicion you left your mobile phone somewhere, for example.
- Certain types of eye movements during REM sleep correspond to specific movements in dreams, suggesting at least part of the dreaming process is analagous to watching a film
- No-one knows for sure if other species dream but some do have sleep cycles similar to humans.
- Elephants sleep standing up during non-REM sleep, but lie down for REM sleep.
- Some scientists believe we dream to fix experiences in long-term memory, that is, we dream about things worth remembering. Others reckon we dream about things worth forgetting - to eliminate overlapping memories that would otherwise clog up our brains.
- Dreams may not serve any purpose at all but be merely a meaningless byproduct of two evolutionary adaptations - sleep and consciousness.
- REM sleep may help developing brains mature. Premature babies have 75 per cent REM sleep, 10 per cent more than full-term bubs. Similarly, a newborn kitten puppy rat or hampster experiences only REM sleep, while a newborn guinea pig (which is much more developed at birth) has almost no REM sleep at all.
- Scientists have not been able to explain a 1998 study showing a bright light shone on the backs of human knees can reset the brain's sleep-wake clock.
- British Ministry of Defence researchers have been able to reset soldiers' body clocks so they can go without sleep for up to 36 hrs. Tiny optical fibres embedded in special spectacles project a ring of bright white light (with a spectrum identical to a sunrise) around the edge of soldiers' retinas, fooling them into thinking they have just woken up. The system was first used on US pilots during the bombing of Kosovo.
- Seventeen hours of sustained wakefulness leads to a decrease in performance equivalent to a blood alcohol-level of 0.05%.
- The 1989 Exxon Valdez oil spill off Alaska, the Challenger space shuttle disaster and the Chernobyl nuclear accident have all been attributed to human errors in which sleep-deprivation played a role.
- The NRMA estimates fatigue is involved in one in 6 fatal road accidents.
- Exposure to noise at night can suppress immune function even if the sleeper doesn’t wake. Unfamiliar noise, and noise during the first and last two hours of sleep, has the greatest disruptive effect on the sleep cycle.
- The "natural alarm clock" which enables some people to wake up more or less when they want to is caused by a burst of the stress hormone adrenocorticotropin. Researchers say this reflects an unconscious anticipation of the stress of waking up.
- Some sleeping tablets, such as barbiturates suppress REM sleep, which can be harmful over a long period.
- In insomnia following bereavement, sleeping pills can disrupt grieving.
- Tiny luminous rays from a digital alarm clock can be enough to disrupt the sleep cycle even if you do not fully wake. The light turns off a "neural switch" in the brain, causing levels of a key sleep chemical to decline within minutes.
- To drop off we must cool off; body temperature and the brain's sleep-wake cycle are closely linked. That's why hot summer nights can cause a restless sleep. The blood flow mechanism that transfers core body heat to the skin works best between 18 and 30 degrees. But later in life, the comfort zone shrinks to between 23 and 25 degrees - one reason why older people have more sleep disorders.
- A night on the grog will help you get to sleep but it will be a light slumber and you won't dream much.
- After five nights of partial sleep deprivation, three drinks will have the same effect on your body as six would when you've slept enough.
- Humans sleep on average around three hours less than other primates like chimps, rhesus monkeys, squirrel monkeys and baboons, all of whom sleep for 10 hours.
- Ducks at risk of attack by predators are able to balance the need for sleep and survival, keeping one half of the brain awake while the other slips into sleep mode.
- Ten per cent of snorers have sleep apnoea, a disorder which causes sufferers to stop breathing up to 300 times a night and significantly increases the risk of suffering a heart attack or stroke.
- Snoring occurs only in non-REM sleep
- Teenagers need as much sleep as small children (about 10 hrs) while those over 65 need the least of all (about six hours). For the average adult aged 25-55, eight hours is considered optimal
- Some studies suggest women need up to an hour's extra sleep a night compared to men, and not getting it may be one reason women are much more susceptible to depression than men.
- Feeling tired can feel normal after a short time. Those deliberately deprived of sleep for research initially noticed greatly the effects on their alertness, mood and physical performance, but the awareness dropped off after the first few days.
- Diaries from the pre-electric-light-globe Victorian era show adults slept nine to 10 hours a night with periods of rest changing with the seasons in line with sunrise and sunsets.
- Most of what we know about sleep we've learned in the past 25 years.
- As a group, 18 to 24 year-olds deprived of sleep suffer more from impaired performance than older adults.
- Experts say one of the most alluring sleep distractions is the 24-hour accessibility of the internet.
- The extra-hour of sleep received when clocks are put back at the start of daylight in Canada has been found to coincide with a fall in the number of road accidents.
