sleep

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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Latest blogosphere posts tagged “sleep”

• Sleepless (I hate to say this) in Seattle

  
  Just A Moment Of Miscellany — Authority: 130
  On Twitter I mentioned to fondanticing there’s not much to do at 2:30 AM. That led to a few exchanges and me then deciding to do a short blog story about sleep. Now I generally sleep about five continuous hours a night but it wasnt always that way. I like to jest that I didn’t survive having children ...
  2 hours ago

• Tinnitus Ringing in Ears

  
  Tinnitus — Authority: 526
  Tinnitus Ringing In The Ears If you have tinnitus, ringing in ears, it could be affecting your day to day life. This can have an impact on how you live your life and the things you do on a daily basis. People with tinnitus have found that this ringing affects their ability to do daily functions, sleep at night, ...
  3 hours ago

• Intense Pain In My Shoulder. Cant Sleep?

  
  Physical Therapy Page — Authority: 155
  im sure its all the signs of disolcation as read from a website. INTENSE PAIN. MUSCLE SPASM. i cant move it back into any position that makes it not hurt. i did put alot of strain on it the other night but ignored the pain.,
  4 hours ago

• Birth by Sleep: New Enemies & Multiplayer Map Revealed

  
  PSPHyper — Authority: 129
  KHInsider has the latest V Jump scan on Kingdom Hearts: Birth by Sleep, which shows a new enemy who kidnapped Master Xehanort. On the other hand, Ventus up against what looks like Organisation XIII members. The second scan show Disney Town in festive mood and also a multiplayer (include both co-op and versus) ...
  5 hours ago

• Never Sleep: Graduating to Graphic Design

  
  Photoshop Tutors — Authority: 157
  ISBN13: 9780979180019 Condition: NEW Notes: Brand New from Publisher. No Remainder Mark. Product Description There is a major disconnect between the life of a design student and the transition to being a design professional. To demystify the transition, we share the failures, successes, and surprises during our ...
  6 hours ago

• Goodnight Sleep Trainer

  
  UpscaleBaby.com — Authority: 144
  After eleven months of little sleep, I have to admit that the idea of a magical fix to my little one’s sleep issues is very appealing. So, of course I had to check out a product called the “Goodnight Sleep Trainer.” Unfortunately, when I looked a little closer, I discovered it is really just a way for parents to ...
  6 hours ago

• Courtney Cox Family Matter Possibly Turns Out To Be A “Baby” Problem

  
  Thaindian News — Authority: 715
  By Madhuri DeyNov.22, (THAINDIAN NEWS) It is possible that the mysterious family matter of actress Courtney Cox has been revealed. The shoot of the series “Cougar Park” had to be suspended as the actress had to leave the sets citing that she had to urgently attend to a “private family matter”, leaving the ...
  6 hours ago

• Designer Dog Beds – Help Your Companion To Sleep In Comfort

  
  Your Online Security Authority Blog — Authority: 440
  Choosing the right one between the hundreds of designer dog beds available is much more demanding than you thought at first. The multiplicity of possibilities is so enormous one does not exactly know where to start in making your choice! However, if you want your choice to be comfortable, good looking and want it to ...
  7 hours ago

• Tips For Purchasing Kids Sleeping Bags

  
  World News — Authority: 464
  Kids sleeping bags are an integral part of a childs growing years. This elegant bag is where a child develops his mental skills so this is no ordinary sleeping bag. They remember the fun and the laughter that they had and how they dreamed of being invincible during this stage in their life so take extra care in buying ...
  8 hours ago

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  Currency Forex Trading Blog — Authority: 155
  
  8 hours ago

• Sleep ‘boosts memory’ (Re-issue)

  
  Thaindian News — Authority: 715
  Washington, Nov 22 (ANI): For anyone trying to remember a new skill, sleeping on it may be a good advice, says a new study.Scientists carried out an experiment in which sleeping volunteers were played sounds associated with a memorised task.When they awoke, they performed better in the tests, showing their memories ...
  9 hours ago

• A New Way to Treat Cellulite

  
  Home Fitness Body — Authority: 127
  Cellulite occurs mostly in women – men are rarely affected by this disease. 90% of women have cellulite, which is usually in the legs, abdomen and pelvic area. Cellulite is the dimpled appearance of skin. Its causes are not fully understood, but most women do not want as well – I do mostly everything to remove ...
  9 hours ago

• Maybe

  
  Documented, Scrapbook'd. — Authority: 150
  I’ll keep replaying the credits as soundtrack lullabies until I fall asleep.I no longer...
  9 hours ago

• “You have a serious problem of distorting...

  
  Documented, Scrapbook'd. — Authority: 150
  “You have a serious problem of distorting reality”…story of my life. “In dreams, emotions are overwhelming.” When I’m half asleep right before sleep, emotions are overwhelming, because I can still process thoughts consciously. and type.
  9 hours ago

• The Science of Sleep

  
  Documented, Scrapbook'd. — Authority: 150
  is still my favorite movieand I just rewatched it again.I think it just reminds me of how timid I...
  9 hours ago

• Careful with that axe, Dave…

  
  The Real Dave — Authority: 119
  I’m ready to kill me some fucking teenagers right now. I’m not kidding. I don’t think it’s unreasonable to expect the kids to start winding down at midnight.  Or show a little deference to one person in the house struggling to take care of his family back home and thus needs his sleep and a little peace and ...
  10 hours ago

• Legal Supplements – Good, Natural Supplements

  
  fresh healthy body — Authority: 151
  There are so many people today taking natural supplements . Supplements can do many different things. They can enhance performance of your body and mind, they can help you to become more energized and lose weight. Some can help protect you from disease, or help you fight a disease. Of course, natural ...
  11 hours ago

• Do cats kiss?

  
  Faraday's Cage is where you put Schroedinger's Cat — Authority: 418
  I was going to go to a midnight showing of the Princess Bride tonight. Unfortunately, my friend had to cancel because her sister, who is the same age as the older boy, was signed up to do babysitting at church tomorrow. Her parents werent too happy with our plans. (Typing that makes me feel like a kid.) As it ...
  11 hours ago

• Hallucinogenic drug made Jean-Paul Sartre ‘fall in love’ with lobsters

  
  Thaindian News — Authority: 715
  London, November 22 (ANI): A new book has revealed that European thinker Jean-Paul Sartre used to have hallucinations of lobsters, which once even chased him down the Champs Elysées.New York professor John Gerassi’s book sheds light on the conversation between him and the French philosopher about mescaline, a ...
  12 hours ago

• Snapple Fact #698

  
  Caity! — Authority: 126
  Josh and I bought a case of Snapple today as a treat. I found my Snapple Fact to be rather ironic, so I thought I would share it with you! Stepping out for a walk every day can actually help you sleep better at night. I thought it was really ironic for a few reasons. First of all, I have been sleeping very ...
  13 hours ago

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