sleep

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The natural state of rest for human and animals is sleep. Regular sleep is essential for survival. There are two broad types of sleep; rapid eye movement and non-rapid eye movement. The stages of sleep were defined in 1937 by Alfred L. Loomis who determined five stages of sleep from A through E. This covered the full range from deep sleep to wakefulness. This definition has been refined through time and is now ranked as three distinct stages of non-rapid eye movement and one stage of rapid eye movement. In non-rapid eye movement sleep there is little dreaming; rapid eye movement sleep accounts for 20-25% of total sleep time in normal adults and accounts for memorable dreams.

Each stage of sleep has unique characteristics; each stage lasts in humans from 90 to 110 minutes on average and has distinct physiological characteristics. Failure to complete the sleep stages may lead to sleep deprivation and a feeling of tiredness upon waking.

Sleeping pills, alcohol and stress can contribute to disruptive sleep patterns and may increase the feeling of tiredness. The National Sleep Foundation (US) suggests that an adult requires seven to nine hours of sleep. Proper sleep benefits performance, memory, problem solving, health and reduces the possibility of accidents. Some Physicians have attributed some forms of sleep fatigue to sleeping environment such as noise levels, humidity and the particular mattress or bed being used.

There are many ongoing discussions about sleep in the blogosphere. Dr. Michael Breus, Ph.D. and owner of the Insomnia Blog, offers advice and up to date news in the world of sleep and insomnia.

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Original Technorati articles tagged “sleep”

Latest blogosphere posts tagged “sleep”
 

  • What are you doing for labor day ?


    The Global News — Authority Authority: 165
    consider this yer invite to KNOXVILLE TN. BOOMSDAY 2008…ALL DAY FESTIVITIES ON THE WATER FRONT…TO BE CAPPED OFF WITH FIREWORKS AT 9:00 TONIGHT…. woo hoo, i love fireworks, were grilling out..its the last official weekend of summer ya know. Working unfortunately…..;( A..My friends father passed away, so i am ...
    2 hours ago

  • More sleep.. can I has it?


    Ask MetaFilter — Authority Authority: 656
    How do I get back to sleep quicker? My little terror is gradually sleeping.. better.. but still tends to wake up at least once in the wee hours (2am - 5am). I can usually get her back to sleep fairly quickly, but what I cant do is get back to sleep myself . Ill go back to bed and make myself comfortable, but by ...
    4 hours ago

  • Styling And Decorating The Toddler Room


    InsomniaRest.com — Authority Authority: 132
    A new baby is soon to come and join the family. Everybody’s excited especially you and part of that excitement is preparing a special place in the house for your new prince or princess. Decorating and designing the nursery is not simple but once you know how to do it perfectly, it would just be a piece of cake! ...
    7 hours ago

  • Why too much exercise may be interfering with your fertility


    inCYST on the Best! — Authority Authority: 123
    Here is some interesting information from the world of sleep research that may have pertinence to those of you trying to conceive--and avoid miscarriage. Even though we consider exercise to be a healthy behavior, technically, it is a stress.  One of the types of stresses it induces, is thermal stress, or a rise in ...
    10 hours ago

  • Sleep Deprived???


    Jill of All Trades — Authority Authority: 129
    Am I sleep deprived, well, maybe I am but Im making up for it this weekend I can assure you.  Yesterday I got up at 8:30 and then at 1:30 in the afternoon, after a morning of laying in the hammock I took a nap.  Not a short nap but a four hour nap.  Then last night we went to Sin and Bares for hamburgers and by ...
    12 hours ago

  • Queuing up the Dream State


    SilverPen Publishing — Authority Authority: 427
    Never got around to publishing this yesterday because I was too busy playing WoW. Whenever I game for a long time (like the approximately 8 hours I did Friday night), it influences my dreams. Playing World of Warcraft as I did, I had expected dreams of slaying undead and riding dragons, but something else entirely ...
    13 hours ago


  • BLOBBY'S BLOG — Authority Authority: 129
    Sleep Keeps Me Awake Im here. Im here. Just a little later than usual. Last night was a rough one. No, there was no drinking or carousing. Quite the opposite: it was a quiet night at home with chinese take-out (the food, not the people) and I think I was in bed by 22:30. Exciting, huh? Spin and workout and ...
    14 hours ago

  • Weekend Links


    The Low-Tech Times — Authority Authority: 120
    Sleep Is A Good Thing:Online night-owls ‘risk mental illness’: Sleepless nights blamed for rise in teen depressionWhat is the U.S. coming to?Elementary school playgrounds in one West Virginia county are losing their swing sets.
    14 hours ago

  • Snoring Chin Strap Tips That Will Help YOU Today


    Laser Beauty Cosmetics — Authority Authority: 509
    Snoring is a condition that can make you a subject of mockery among your friends and loved ones. What can you do in order to escape from such humiliation? Which snoring causes are most frequent? Medicine made great strides this century, but is there an effective snoring solution? The unfortunate truth is that snoring ...
    18 hours ago

  • Insomnia - Frequent Causes


    alternativemedicinetech.com — Authority Authority: 147
    There are a number of totally different sleep issues on the market which can be affecting hundreds of thousands of people. This may be so frustrating since sleep is supposed to assist our our bodies regroup and regenerate to assist us deal with the toils of every passing day. Some of the common sleep problems out ...
    19 hours ago

  • The Newest Insomnia Cure!


    alternativemedicinetech.com — Authority Authority: 147
    Millions of people endure from insomnia. Insomnia is lack of ability to sleep. Individuals affected by this dysfunction are both not capable of sleep or if they do fall asleep their sleep is interrupted and they don’t get up refreshed. There are lots of causes for insomnia starting from enlarged tonsils to stress, ...
    19 hours ago

  • Men With Insomnia at Risk


    SLEEP Online Magazine - The SLEEP Blog - All about SLEEP, SLEEPING, and SLEEPINESS — Authority Authority: 436
    It seems that men who are suffering from Insomnia better watch out. If they value their life or intend to live longer may want to address the number of hours they sleep. According to a study, it seems that men who sleep less than 6 hours are more likely to incur a higher risk of death. People who said they did not ...
    19 hours ago

  • The full monty scares thief away


    We Interrupt — Authority Authority: 489
    A CAR thief ran off when the owner of the vehicle he was about to steal got into the car naked. Russell Stuart, 51, was woken when he heard his Peugeot car being revved up on his driveway in the early hours, UK’s The Daily Telegraph reported. Mr Stuart ran outside, opened the passenger door and sat beside the ...
    19 hours ago

  • Easy Like Sunday with Allie


    Friends FurEver — Authority Authority: 129
    It sure has been a rough few weeks here. Were glad that Sniffies V-E-T appointment went well and were purring and praying that she is finally on the road to recovery! We want to thank everyone who purrred, prayed, wagged, woofed, baad or mood! Allie says she thinks we all deserve a nap!
    20 hours ago

  • Time for bed?


    Gluten Free Gobsmacked — Authority Authority: 108
    Beets , originally uploaded by Kate Chan . Just finished unpacking groceries, putting the toddler to bed after her bath, cleaning up from dinner, getting the Newbie into a restful state… and started making formula. And I find myself daydreaming about the upcoming tasty roasted beets for lunch with the ...
    21 hours ago

  • and he stays ‘Black as Black’


    Can't Stop Fanatics — Authority Authority: 119
    An absolutely superb mixtape by Poetic Republic. I’ve had this on regular rotation for a few days now. Awesome stuff. Do not sleep. Download: The Blackest Man Alive
    22 hours ago

  • Losing track of time at night?


    Yahoo...Answers? — Authority Authority: 559
    http://answers.yahoo.com/question/index;_ylt=AjyJNWDV7rxahf9g6HnS6HMt53NG;_ylv=3?qid=20100831123045A...
    23 hours ago

  • 03:17 – A day of hiding


    My Crazy Bipolar Life — Authority Authority: 130
    What can I say about today? I slept. And slept some more. And every time I woke up and looked at the clock I rolled my eyes and went back to sleep again. In fact every time I woke up I took another sleeping pill to try and knock myself back out again. I just could not face being awake today and every time my eyes ...
    1 day ago

  • Sword – How Heavy This Axe Lyrics


    Music News, Videos and more - Musikizme.com Music News, Videos and more Musikizme.com — Authority Authority: 172
    Sword – How Heavy This Axe Lyrics So many men have fallen So many more must die Cut down like wheat beneath a scythe And though our limbs may weary Of ripping, slashing, cleaving blows We face an endless host of foes How heavy this axe Burden carried from birth Wrought in stygian visions By the gods of the earth ...
    1 day ago

  • Concept Of God – Traces Lyrics


    Music News, Videos and more - Musikizme.com Music News, Videos and more Musikizme.com — Authority Authority: 172
    Concept Of God – Traces Lyrics I have no doubt that you are blind Walk a holy path broken from inside Gracious creatures flail tearing at flesh Traces of life are broken from inside We sing a lonely song Fall to your knees Fall to the ground See life slip out Fall to your knees Fall to the ground Righteous wisdom ...
    1 day ago

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