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20 Facts about sleep
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Antlan
enchantrice
littlecut
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20 Facts about sleep
The science of sleep is
a modern one - in fact most scientific information on sleep has been
gained in the last 25 years. This is a list of 20 very interesting
facts about sleep.
1. 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.
2. 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.
3. 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.
4. Dreams, once thought to occur only during REM (Rapid Eye Movement)
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.
5. 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.
6. 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
7. Elephants sleep standing up during non-REM sleep, but lie down for REM sleep.
8. Some scientists believe we dream to fix experiences in long-term
memory, that is, we dream about things worth remembering. Others think
we dream about things worth forgetting - to eliminate overlapping
memories that would otherwise clog up our brains.
9. Dreams may not serve any purpose at all but be merely a meaningless
byproduct of two evolutionary adaptations - sleep and consciousness.
10. 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.
11. 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.
12. 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.
13. 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.
14. 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.
15. 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.
16. 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.
17. 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.
18. Most of what we know about sleep we’ve learned in the past 25 years.
19. 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.
20. Experts say one of the most alluring sleep distractions is the 24-hour accessibility of the internet.
a modern one - in fact most scientific information on sleep has been
gained in the last 25 years. This is a list of 20 very interesting
facts about sleep.
1. 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.
2. 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.
3. 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.
4. Dreams, once thought to occur only during REM (Rapid Eye Movement)
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.
5. 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.
6. 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
7. Elephants sleep standing up during non-REM sleep, but lie down for REM sleep.
8. Some scientists believe we dream to fix experiences in long-term
memory, that is, we dream about things worth remembering. Others think
we dream about things worth forgetting - to eliminate overlapping
memories that would otherwise clog up our brains.
9. Dreams may not serve any purpose at all but be merely a meaningless
byproduct of two evolutionary adaptations - sleep and consciousness.
10. 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.
11. 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.
12. 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.
13. 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.
14. 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.
15. 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.
16. 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.
17. 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.
18. Most of what we know about sleep we’ve learned in the past 25 years.
19. 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.
20. Experts say one of the most alluring sleep distractions is the 24-hour accessibility of the internet.
Re: 20 Facts about sleep
1. 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.
Hanggang 36-40 hours palang yung nagagawa ko/natin eh. Pero kung isa-sum-up nating lahat yung mga oras na wala tayong tulog...
15. 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
Hmmmmmmmmm... EHEEEEEEM.... Wahahahaha
20. Experts say one of the most alluring sleep distractions is the 24-hour accessibility of the internet.
D2D (Deny to death) ang makakabasa neto na hindi aamin at papayag sa statement na to.
Re: 20 Facts about sleep
yung number one parang mas malala pa yun kesa uminom ka ng 100 baso ng kape... ang malupit pa dun buti nakalakad sya eh 18 days syang nakaupo eh ^_^
Antlan- adik sa kape
-
Number of posts : 79
Age : 34
Location : Manila, Philippines
Registration date : 2008-05-29
Re: 20 Facts about sleep
littlecut wrote:
20. Experts say one of the most alluring sleep distractions is the 24-hour accessibility of the internet.
see??
we're a proof!
L-
Number of posts : 114
Age : 33
Location : 1gig
Registration date : 2008-07-29
Re: 20 Facts about sleep
L wrote:littlecut wrote:
20. Experts say one of the most alluring sleep distractions is the 24-hour accessibility of the internet.
see??
we're a proof!
we're a what???
katsumi- Hindi natutulog sa gabe
-
Number of posts : 304
Age : 34
Location : Manila
Registration date : 2008-05-21
Re: 20 Facts about sleep
@katsumi
proof tyo ng ganyan,
mga prating nagco2mp...
x.x
ma22log nlng magco2mp p,
pro iba s case ng iba kc ung iba d n tlga mka2log eh,
proof tyo ng ganyan,
mga prating nagco2mp...
x.x
ma22log nlng magco2mp p,
pro iba s case ng iba kc ung iba d n tlga mka2log eh,
L-
Number of posts : 114
Age : 33
Location : 1gig
Registration date : 2008-07-29
Re: 20 Facts about sleep
hehe aamin ako adik ako sa comp
rukia22kuchiki-
Number of posts : 82
Age : 38
Location : Bear House
Registration date : 2008-09-12
Re: 20 Facts about sleep
nangyayari sakin to minsan kaya antukin ako sa umaga..
lalo na pag inaatake ako ng narcolepsy
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