August 9th, 2010
12:00 PM ET

Why some people can sleep through anything

Everyone, even the lightest sleeper, is less aware of noise while they sleep. So what helps us in blocking the outside world when we need to re-juice? And what makes some people deeper sleepers than others?

Dr. Jeff Ellenbogen, chief of Massachusetts General Hospital’s Division of Sleep Medicine, led a study looking at particular brain waves called sleep spindles. How many spindles a person’s mind cranks out while sleeping predicts how deep he or she sleeps while bombarded with noise, his study in Current Biology found.

While sleeping, a person’s brain waves become slower and more regular. Sporadically, the brain has bursts of higher-frequency waves called sleep spindles. These bursts, which occur only when a person is sleeping, were dubbed “spindles” because they look like rolls of yarn on an electroencephalograph (EEG), which measures the electronic activity fired by neurons in the brain.

In the experiment, Ellenbogen studied healthy volunteers placed in a sleep laboratory for three consecutive nights. On the first night, participants could blissfully rest in a lofty queen-size bed and fresh, soft sheets without interruption. Ellenbogen and colleagues measured their brain rhythms and noted how often spindles occurred.

The second and third night, the researchers placed a speaker behind the sleepers and played everyday noises, such as alarm clocks or toilets flushing, at varying volumes and noted how loud a noise had to be before arousing each person. According to the study, those with higher spindle rates on the quiet night were more stable sleepers on the noisier nights.

As a person ages, he or she produces fewer spindles and is more sensitive to noises while sleeping. This could explain why people don’t sleep as well after getting older, Ellenbogen said.

Researchers have also found a correlation between spindle rate and learning potential. One study released in 2007 found that the more spindles pumped out while sleeping, the higher the person’s performance IQ was. The more spindles a person produces while they sleep, the better a person consolidates memories, Ellenbogen’s study report cites.

Long-term, Ellenbogen hopes to find natural ways to enhance sleep and all its benefits. We can’t always be in a quiet environment while getting some shut-eye, so he wants to help people make the best of their rest.

He wants to figure out whether sleeping drugs really catalyze genuine sleep or just a sleep-like state, and believes this link between spindles and deeper sleeping will be a tool in doing so.

Post by:
Filed under: Sleep

soundoff (937 Responses)
  1. スーパーコピー ブルガリ リング 8月

    最高品質 ブランドコピー N級品 全国送料無料

    消費税無し! 送料無料! 手数料無料!
    業務内容: 各種海外有名ブランド品を豊富に取り揃え、

    ■ スタイルが多い、品質がよい、価格が低い!
    ■ 送料無料(日本全国) ご注文を期待しています!
    ■ 信用第一、良い品質、低価格は
    ■ 当社の商品は絶対の自信が御座います。



    April 15, 2019 at 20:22 | Report abuse | Reply
  2. 1

    Bruce said: "Everyone agrees that Sam needed to go and play football.
    1 http://dginternational.in/fig33.aspx

    April 28, 2020 at 04:25 | Report abuse | Reply
  3. ct306.aspx

    womens pink jordans
    ct306.aspx http://rainbowdesignusa.com/ct306.aspx

    June 27, 2020 at 06:37 | Report abuse | Reply
  4. nike 97 summit white

    es4Alves spent four years at Barcelona under Pep GuardiolaReuters4Pep Guardiola with Dani Alves, one of his first signings in managementHe also turns 34 in May, which flies in the face of Guardiola trying to lower the average age of his squad.
    nike 97 summit white http://thepresidentsforum.org/lain.aspx?cid=773&shop=nike+97+summit+white&xi=4&xc=19

    October 8, 2020 at 07:01 | Report abuse | Reply
  5. buy erection pills

    erectile dysfunction prognosis
    when does erectile dysfunction happen
    best erectile dysfunction pumps

    November 26, 2020 at 18:32 | Report abuse | Reply
  6. awMjUtSXGm


    November 30, 2020 at 00:57 | Report abuse | Reply
  7. TielaResirric

    free online casino slots las vegas casinos slots machines doubledown casino free slots absolutely free slots [url=http://onlinecasinogameslots.com/# ]play casino slots [/url]

    December 1, 2020 at 08:05 | Report abuse | Reply
  8. Cira Greeno

    aon qq


    December 11, 2020 at 03:39 | Report abuse | Reply
  9. detectives en ocaña

    detectives privados cantabria


    December 12, 2020 at 01:35 | Report abuse | Reply
  10. Un Rosse

    I could not resist commenting. Well written!


    December 12, 2020 at 22:33 | Report abuse | Reply
  11. dominobet

    A person designed such a good exciting article to read, giving just about every subject enlightenment for usa in order to gain knowledge. Thanks for sharing this such info with us to study this specific.


    December 17, 2020 at 08:12 | Report abuse | Reply
  12. jaya poker

    I’m really impressed together together with your composing talents and even also with the design on your blog. Is of which this a paid for subject matter or did an individual modify it your self applied? Either technique stay up often the nice quality writing, that is


    December 18, 2020 at 07:14 | Report abuse | Reply
  13. kartupoker

    Thanks because a person have been willing for you to show information with you. we will generally appreciate all you have performed right here because I realize you are very worried with our


    December 18, 2020 at 22:56 | Report abuse | Reply
  14. Hannah Adolph

    Genialer Artikel, so kann man einfach erklären, Genial MFG Ellena


    December 20, 2020 at 16:01 | Report abuse | Reply
  15. AERXuoqYwJMKvCdQ


    December 21, 2020 at 09:57 | Report abuse | Reply
  16. muckrack.com

    This is quite desirable, however, that will be very important which will computer mouse click on the connection:


    December 23, 2020 at 22:29 | Report abuse | Reply
  17. earn passive income in autopilot

    Earn 100 commissions of up to 900+ dollars DAILY. 90 Second Set Up- 100 Newbie Friendly – Fully Hosted "MonsterMode PRO Funnel" Included FREE – Fully Scalable $10K+ Per Month Income Potential More details: Click the link in profile


    December 26, 2020 at 14:17 | Report abuse | Reply
  18. Lanette Penfold

    If you enjoyed this, You will enjoy MSM Retail – You can find them here: https://www.msmretail.com is a discounted online retail store with great products at low prices. Name brand products such as Calvin Klein, KateSpade, Nike, Milwaukee & much more. You can view their discount section here: https://msmretail.com/collections/daily-deals They're designed to help you save. Check them out & start saving!


    January 1, 2021 at 02:38 | Report abuse | Reply
  19. vreyro linomit

    Really excellent visual appeal on this web site, I'd value it 10 10.


    January 1, 2021 at 04:39 | Report abuse | Reply
  20. Jae Lui

    Interested in more information. How can I contact you?


    January 3, 2021 at 21:41 | Report abuse | Reply
  21. Source Link

    it was a wonderful chance to go to this kind of site and I am delighted to know. thank you so much to get giving us a new probability to have this possibility.


    January 5, 2021 at 00:38 | Report abuse | Reply
  22. apk.tw

    it was some sort of wonderful chance to pay a visit to this kind of web site and I actually am delighted to know. thank you so much with regard to giving us some sort of chance to have this chance.


    January 6, 2021 at 23:12 | Report abuse | Reply
  23. Wajib Untuk Bisa Mendapatkan Masters Taruhan Online Real

    You possess touched a few nice items here. In whatever way keep upward wrinting.


    January 7, 2021 at 09:11 | Report abuse | Reply
  24. Dusty Tortorella

    Interested in more information. How can I contact you?


    January 7, 2021 at 20:42 | Report abuse | Reply
  25. Olinda Undercoffler

    Thanks so much the information. I love sucking dick btw hmu


    January 7, 2021 at 20:50 | Report abuse | Reply
  26. site

    Thanks for great data I became looking regarding this information for my own mission.


    January 8, 2021 at 05:32 | Report abuse | Reply
  27. Gilda

    My family every time say that I am wasting my time here at web, except I know I am getting know-how daily by reading such pleasant content.

    Here is my web-site judi onlen (sites.google.com)

    January 9, 2021 at 01:35 | Report abuse | Reply
  28. acmepackingcompany.com

    this was a new wonderful chance to check out this kind of web site and My partner and i am cheerful to know. thank you so much intended for giving us the possibility to have this opportunity.


    January 10, 2021 at 03:49 | Report abuse | Reply
  29. Enrique Derendal

    I like what you guys are up too. Such smart work and reporting! Carry on the excellent works guys I¡¦ve incorporated you guys to my blogroll. I think it'll improve the value of my site 🙂


    January 11, 2021 at 01:19 | Report abuse | Reply
  30. Edelmira Ken

    Thanks for the sensible critique. Me & my neighbor were just preparing to do a little research on this. We got a grab a book from our local library but I think I learned more from this post. I am very glad to see such fantastic info being shared freely out there.


    January 11, 2021 at 02:22 | Report abuse | Reply
  31. Source Link

    the idea was some sort of wonderful chance to take a look at this kind of web site and My spouse and i am content to know. thank you with regard to giving us a new probability to have this opportunity.


    January 11, 2021 at 02:44 | Report abuse | Reply
  32. Lionel Summons

    very nice post, i certainly love this website, persist in it


    January 11, 2021 at 22:25 | Report abuse | Reply
  33. Madlyn Desir

    This is very interesting content! I have thoroughly enjoyed reading your points and have come to the conclusion that you are right about many of them. You are great.


    January 12, 2021 at 00:04 | Report abuse | Reply
  34. Agatha Stinar

    You need to participate in a contest for among the best blogs on the web. I will suggest this web site!


    January 12, 2021 at 00:53 | Report abuse | Reply
  35. footcarenursing.com

    Incredible article, you have got denoted out many wonderful points, I also assume this s a good very excellent website. I actually will visit once again with regard to more quality contents plus, suggest this site in order to all. Thank you.


    January 14, 2021 at 03:46 | Report abuse | Reply
  36. fwLRFiKDd


    January 14, 2021 at 10:31 | Report abuse | Reply
  37. Lory Vollbrecht


    January 15, 2021 at 19:55 | Report abuse | Reply
  38. Bruno Magalski


    January 15, 2021 at 23:06 | Report abuse | Reply
  39. https://dewapoker1.asia

    This proved to be Very helpful to us and I am certain to any or all the commentators here!


    January 16, 2021 at 05:21 | Report abuse | Reply
  40. Ena Eiden

    Hiya very cool website!! Guy .. Excellent .. Amazing .. I'll bookmark your website and take the feeds additionally…I am satisfied to search out so many helpful information right here within the submit, we'd like develop extra strategies on this regard, thanks for sharing.


    January 17, 2021 at 22:53 | Report abuse | Reply
  41. link kartupoker

    Thanks regarding the informative in addition to very helpful post, obviously in the blog page everything is good.


    January 18, 2021 at 00:31 | Report abuse | Reply
  42. dewa poker

    You manufactured such a great exciting piece to read, giving every single subject enlightenment for individuals to get knowledge. Thanks intended for sharing the such facts with us to learn this particular.


    January 19, 2021 at 02:27 | Report abuse | Reply
  43. vRCgLzUEnjeKwB


    January 19, 2021 at 16:13 | Report abuse | Reply
  44. John Ruff

    Thank you for the good writeup. It in fact was a amusement account it. Look advanced to far added agreeable from you! However, how can we communicate?


    January 21, 2021 at 01:13 | Report abuse | Reply
  45. https://dewapoker1.asia/

    Many regards for sharing!


    January 21, 2021 at 02:16 | Report abuse | Reply
  46. Josef Barte

    Thank you for the sensible critique. Me and my neighbor were just preparing to do a little research about this. We got a grab a book from our local library but I think I learned more from this post. I am very glad to see such great info being shared freely out there.


    January 21, 2021 at 05:26 | Report abuse | Reply
  47. Chang Kopczynski


    January 21, 2021 at 10:57 | Report abuse | Reply
  48. Xenia Rasulo

    Best Marketing Services – Cheapest on Market. SMM Supreme is the Top 5 Best Social Media Website in the World. Best Quality-Price Ratio on the market with 714,928 orders until now. – Facebook Fan Page Likes for $4.50/1000 – Instagram Followers for $0.78/1000 – Youtube Views: $1.62/1000 – Twitter followers: $2.10/1000 – Paypal Deposit – Bitcoin Deposit – Fast order processing – 1 Hour Delivery (Click on the link in the profile for more details)


    January 22, 2021 at 21:48 | Report abuse | Reply
  49. link game judi slot uang asli

    Fine way of telling, and nice post to take facts about
    my presentation focus, which i am going to deliver in college.

    January 23, 2021 at 21:43 | Report abuse | Reply
  50. dewa poker

    Anyone built such a useful bit to read, giving just about every subject enlightenment for us all to get knowledge. Thanks to get sharing the particular such information with us to see that.


    January 23, 2021 at 23:20 | Report abuse | Reply
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19

Leave a Reply to Wheelchair Van Repair


CNN welcomes a lively and courteous discussion as long as you follow the Rules of Conduct set forth in our Terms of Service. Comments are not pre-screened before they post. You agree that anything you post may be used, along with your name and profile picture, in accordance with our Privacy Policy and the license you have granted pursuant to our Terms of Service.

About this blog

Get a behind-the-scenes look at the latest stories from CNN Chief Medical Correspondent, Dr. Sanjay Gupta, Senior Medical Correspondent Elizabeth Cohen and the CNN Medical Unit producers. They'll share news and views on health and medical trends - info that will help you take better care of yourself and the people you love.