Navigation Links
Sleepless Nights Make for Grumpier Brains
Date:10/22/2007

Mind's emotion centers less controlled when weary, MRI study shows

MONDAY, Oct. 22 (HealthDay News) -- Ever get a little testy after a bad night's sleep? Scientists may now know why.

A new study finds that a lack of sleep causes the brain's emotional centers to dramatically overreact to negative experiences.

A shutdown of the prefrontal lobe -- a brain region that normally keeps emotions under control -- is the reason for heightened emotional response in sleep-deprived people, said the researchers from Harvard Medical School and the University of California, Berkeley.

Reporting in the Oct. 23 issue of the journal Current Biology, the team said its study is the first to determine, at the neural level, why lack of sleep can lead to emotionally irrational behavior and may help improve understanding of the link between sleep disruptions and psychiatric disorders.

"This adds to the critical list of sleep's benefits," Matthew Walker of the University of California, Berkeley, said in a prepared statement. "Sleep appears to restore our emotional brain circuits, and, in doing so, prepares us for the next day's challenges and social interactions. Most importantly, this study demonstrates the dangers of not sleeping enough. Sleep deprivation fractures the brain mechanisms that regulate key aspects of our mental health."

The study included 26 healthy people who were assigned to either a normal sleep group or to a sleep deprivation group, where they were kept awake for 35 hours. Afterwards, functional magnetic resonance imaging (fMRI) was used to measure the participants' brain activity.

"We had predicted a potential increase in the emotional reaction from the brain (in people deprived of sleep), but the size of the increase truly surprised us," Walker said. "The emotional centers of the brain were over 60 percent more reactive under conditions of sleep deprivation than in subjects who had obtained a
'/>"/>

Copyright©2007 ScoutNews,LLC.
All rights reserved

Page: 1 2

Related medicine news :

1. Cure for sleepless nights
2. Cancer Patients and Sleeplessness
3. Understanding The Mystery Behind Sleepless Nights
4. Complex Apnea May Explain Sleepless Nights
5. More Americans Affected by Sleeplessness
6. Human Rights Activists Sleepless In Seattle
7. Mood Swings and Late Nights are Signs That Your Teenage Kid is in Love
8. Older Women With Memory Problems at Increased Risk for Restless Nights
9. Memory Problem in Older Women Lead to Restless Nights
10. Late Nights may Make Preteens Antisocial and Aggressive
11. Genetic differences found between Male and Female brains
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/24/2015)... Vancouver, BC (PRWEB) April 24, 2015 ... Albert Yuzpe, Olive Fertility co-founder and co-director, has been ... Fertility Preservation at the Evening of Hope Gala. ... to recognize Dr. Albert Yuzpe, who has been at ... past 43 years,” says Jessica Séguin, Executive Director of ...
(Date:4/24/2015)... April 24, 2015 National Access ... and legal access to medical cannabis, is taking a ... supported when advising patients. , NAC is the first ... With a $250,000 grant, NAC will be providing 300 ... "Our goal is to help Canadians gain safe and ...
(Date:4/24/2015)... April 24, 2015 Telematics Berlin is ... automakers, tier 1 & 2 suppliers, content providers, associations ... players in the value chain, see them converge in ... not only hear from those companies currently at the ... future partners. Working on customer centric products, ParkTAG are ...
(Date:4/24/2015)... PURE Solutions, a leader in allergy travel ... Network), a highly respected education, advocacy and community out-reach ... information for a special allergy travel section ... goal for both organizations is to “make lives better” ... with asthma and allergies and by finding effective ways ...
(Date:4/24/2015)... (PRWEB) April 24, 2015 ProTube Outro is ... Pro X video editors. ProTube Outro allows editors to ... 5 video drop zones. Position, scale, and rotate pictures/videos, ... ProTube Outro uses simple borders and shadows for a ... exclusive plugin. , ProTube Outro comes packed with over 30 ...
Breaking Medicine News(10 mins):Health News:Olive Fertility Centre Co-founder, Dr Al Yuzpe, Recognized as a Pioneer in Fertility Preservation 2Health News:National Access Cannabis Gives 300 Canadian Healthcare Professionals Access to Medical Cannabis Certificate Program 2Health News:Telematics Berlin 2015’s inaugural European Automotive Start-Up Competition 2Health News:Telematics Berlin 2015’s inaugural European Automotive Start-Up Competition 3Health News:PURE Solutions Partners with Allergy and Asthma Network to Provide Allergy Travel Tips 2Health News:Pixel Film Studios, FCPX Plugin Developer Announced the Release of Protube Outro, Outro Screen Templates for Final Cut Pro X 2
... sexually transmitted infections to tell their partners// to seek ... or drugs to help reduce infection rates, says a ... an important part of managing most curable sexually transmitted ... often makes this difficult. ,Researchers analysed ...
... is in the process of doing away with a commonly ... phase out the ‘Aropax’ brand of paroxetine and bring in ... used by about 49,000 New Zealanders. ,This move ... maintains that both drugs are the same, except for the ...
... supplements of folic acid could improve the memory and ... researchers from the University of Wageningen gave a group ... acid supplements or a dummy drug for three years, ... ,The folic acid group had significantly better memories and ...
... are helping to lead a large international study // ... in an effort to determine whether exercise really is ... promoted the value of exercise for a variety of ... established as safe in the group of patients who ...
... light of new information on facial transplantation—including the psychological ... of the Royal College of Surgeons of England now ... according to a report published in the Jan. 27 ... in 2003, the Working Party concluded that facial transplantation ...
... It’s no secret why we shed tears. But exactly what our ... ,A new study sheds some light on the complex design ... film, which is made up of three distinct, microscopic layers. The ... when we cry – is sandwiched between a layer of mucus ...
Cached Medicine News:Health News:New International Study to Test Exercise in Heart Failure Patients 2Health News:New International Study to Test Exercise in Heart Failure Patients 3Health News:Royal College Issues Revised Guidelines for Face Transplantation 2Health News:Royal College Issues Revised Guidelines for Face Transplantation 3Health News:Tears Reveal Some of Their Deepest Secrets to Researchers 2Health News:Tears Reveal Some of Their Deepest Secrets to Researchers 3
(Date:4/23/2015)... OTTAWA , April 23, 2015 /CNW/ - Health ... oral ibuprofen products to update the safety information regarding ... attack and stroke) when these products are used at ... increases with dose and duration of use. ... pain and fever relief, and to reduce inflammation. The ...
(Date:4/23/2015)... Apr. 23, 2015 Surna, Inc. (OTCQB: SRNA), ... state-of-the art equipment and systems for controlled environment ... cannabis cultivation, will host a shareholder conference call ... 2015, at 4:15 PM Eastern Standard Time/1:15 PM ... call will be listen-in only, but will include ...
(Date:4/23/2015)... 23, 2015  Hill-Rom Holdings, Inc., (NYSE: HRC ... at the Deutsche Bank 40 th Annual Health ... EDT. You are invited to listen to ... http://ir.hill-rom.com/events.cfm or access it directly at http://edge.media-server.com/m/p/yvym8uoy ... available one hour after conclusion of the live event ...
Breaking Medicine Technology:Information Update - New safety information for prescription-strength ibuprofen: Risk of heart attack and stroke at high doses 2Information Update - New safety information for prescription-strength ibuprofen: Risk of heart attack and stroke at high doses 3Information Update - New safety information for prescription-strength ibuprofen: Risk of heart attack and stroke at high doses 4Surna, Inc. Announces Shareholder Conference Call 2Surna, Inc. Announces Shareholder Conference Call 3
... PRINCETON, N.J., Feb. 1, 2011 Soligenix, Inc. (OTC ... Company), a late-stage biopharmaceutical company, announced today that it ... President and Chief Medical Officer. Dr. Horgan is a ... and experience in the care of patients with inflammatory ...
... AssureRx Health, Inc. today announced the appointments of two ... Donald R. Wright, Jr. has been appointed as executive ... Bellano as senior vice president, sales & commercial programs. ... of AssureRx,s pharmacogenetic test, GeneSightRx®, and the blueprint ...
Cached Medicine Technology:Soligenix Appoints Kevin Horgan, MD, as Chief Medical Officer 2Soligenix Appoints Kevin Horgan, MD, as Chief Medical Officer 3Soligenix Appoints Kevin Horgan, MD, as Chief Medical Officer 4AssureRx Appoints Senior Executives in Key Roles to Drive Company Growth 2AssureRx Appoints Senior Executives in Key Roles to Drive Company Growth 3
For the quantitative determination of total cholesterol in human serum....
Intended for the quantitative determination of total cholesterol in serum. Single vial, dry powder reagent. Reaction: Endpoint. Wavelength: 500 nm. Linearity: 700 mg/dL (12.9 mmol/L)....
For the quantitative in vitro determination of lithium in serum and plasma. Wavelength: 550 nm. Linear range: up to 4 mm....
This True 12-bit integrated and cooled system is a completely self contained unit built with a long list of standard features including all-electronic-variable transilluminator and EPI lighting....
Medicine Products: