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:5/25/2015)... A recent report for Mass Live ... died as a direct result of an opiate overdose in ... rise in overdose deaths attributed to prescription opiate medications, and ... care about geography. This issue doesn’t care about race. This ... class.” As the state of Mass. reels from the effects ...
(Date:5/25/2015)... After the sensational buzz surrounding their ... wellness company Trivedi Master Wellness™ agrees to ... series titled, “Consciousness is Power.” Presently, the Live-Streaming event ... at the routinely allotted time from 10:00pm PST/1:00pm EST ... made available to the public and accessible on the ...
(Date:5/24/2015)... New York, NY (PRWEB) May 24, 2015 ... begins on Sunday, May 24th in San Diego at Petco ... tour throughout North America. On May 20th, they had ... Theatre. At their preview show in Los Angeles, this ... its entirety; they also played fan favorites such as "Jumping ...
(Date:5/24/2015)... 24, 2015 EnviroLeather™ by LDI, ... Plus” – a classic, rugged leather grain with ... difficult stains, including ink, to be easily removed. ... suitable for corporate, healthcare, hospitality and education environments. ... EnviroLeather’s goal of developing products that are more ...
(Date:5/24/2015)... 24, 2015 ... - The students were selected ... the fourth annual A Day of ... Geneva National in Lake Geneva. , ... High School,         Jonathan Alfonso,         Bridget Keefe, ...
Breaking Medicine News(10 mins):Health News:Opioid Deaths Increase by 33 Percent Since 2012 in Mass. 2Health News:Hundreds of People Are Thrilled to Hear that Trivedi Master Wellness™ Promises to Hold Another Workshop in June 2015 2Health News:Hundreds of People Are Thrilled to Hear that Trivedi Master Wellness™ Promises to Hold Another Workshop in June 2015 3Health News:The Rolling Stones Tickets in San Diego, Orlando, Minneapolis, Dallas, Pittsburgh, Indianapolis, Atlanta, Detroit, Milwaukee, Kansas City, Columbus, Nashville & Raleigh 2Health News:EnviroLeather By LDI Launches "InkGard Plus" - Stain Resistant Faux Leather 2Health News:Mercy Foundation Honors 16 Students for Making a Difference - Mercy Health System Javon Bea 2
... initiated by World Health,Organization's (WHO) authority to ... unofficial,sources, soon after any outbreak of infectious,diseases ... a crucial decision it was decided that ... on-the-spot,investigations to determine the severity of an,outbreak ...
... on its border with hard-hit China. ,The first confirmed case ... the Amur river, which forms the frontier with China, came ... his country could contain the disease.,Hu told students in Moscow, ... introduced strict measures to stop the spread of the deadly ...
... may benefit non-anemic women between ages 18 and 55 with ... with low ferritin, a protein that stores iron and is ... of Lausanne in Switzerland gave 136 women either 80 milligrams ... The study shows the level of fatigue after one month ...
... The global health community has taken a key ... of infectious diseases and other threats to international ... underlines the World Health Organization’s (WHO) authority to ... unofficial sources, and, when necessary to determine the ...
... the illness have been told to quarantine themselves at ... chief medical officer of health. Precautions taken at ... control dozens of possible new cases. Health officials ... city back on its list of SARS - affected ...
... may have a potential role in treating Alzheimer's. Lithium ... of both the proteins found in Alzheimer's patients. Identification ... other drugs that disrupt the production of both proteins., ... not disrupt the processing of another protein called notch, ...
Cached Medicine News:Health News:WHO Says Toronto Going Back on SARS-Affected List 2Health News:Lithium May help in Alzheimer's Disease 2
(Date:5/22/2015)... 22, 2015   InspireMD, Inc. (NYSE MKT: NSPR) ... systems ("EPS"), today announced that its CGuard TM Embolic ... investigator Prof. Piotr Musialek , at the EuroPCR ... France . PARADIGM, an investigator-initiated P ... A roti D revascularization I n symptomatic and ...
(Date:5/22/2015)... 22, 2015 Today, Rhodes Pharmaceuticals L.P. announced ... stimulant indicated for the treatment of Attention-Deficit/Hyperactivity Disorder ... 2015. The announcement comes just ... the U.S. Food and Drug Administration (FDA). ... of methylphenidate capsule with an onset of effect ...
(Date:5/22/2015)... LONDON , May 22, 2015 ... early phase clinical research unit with a worldwide ... respected for its frequent publications in peer reviewed ... and European stakeholders and regulators in discussions about ... results.      (Logo: http://photos.prnewswire.com/prnh/20150522/745125) , ...
Breaking Medicine Technology:InspireMD's CGuardTM Highlighted at Clinical Presentation at EuroPCR 2015 Conference 2InspireMD's CGuardTM Highlighted at Clinical Presentation at EuroPCR 2015 Conference 3InspireMD's CGuardTM Highlighted at Clinical Presentation at EuroPCR 2015 Conference 4Rhodes Pharmaceuticals Announces Launch of New, Once-Daily Treatment for ADHD 2Rhodes Pharmaceuticals Announces Launch of New, Once-Daily Treatment for ADHD 3Rhodes Pharmaceuticals Announces Launch of New, Once-Daily Treatment for ADHD 4Rhodes Pharmaceuticals Announces Launch of New, Once-Daily Treatment for ADHD 5Rhodes Pharmaceuticals Announces Launch of New, Once-Daily Treatment for ADHD 6
... WASHINGTON, Aug. 10, 2011 In a just-released National ... Treatment http://www.nmqf.org/IB3SpecialtyTiersFinal.pdf ), Gary Puckrein ... has become popular among insurers (public and private) as ... requiring beneficiaries to pay more for certain high-cost prescription ...
... and ST. AUGUSTINE, Fla., Aug. 10, 2011 ... hospitals, has selected the Sunrise Enterprise ™ suite ... (NASDAQ: MDRX).  In addition to implementing Sunrise within the ... Electronic Health Record (EHR) and practice management solution ...
Cached Medicine Technology:Prescription-Drug Plans' Use of Specialty Tiers Promotes Inequalities 2Flagler Hospital Selects the Sunrise Enterprise Acute Care Solution From Allscripts 2Flagler Hospital Selects the Sunrise Enterprise Acute Care Solution From Allscripts 3Flagler Hospital Selects the Sunrise Enterprise Acute Care Solution From Allscripts 4Flagler Hospital Selects the Sunrise Enterprise Acute Care Solution From Allscripts 5Flagler Hospital Selects the Sunrise Enterprise Acute Care Solution From Allscripts 6
The playful pattern of this lens features sky-blue forms fanning out from the center of your eye....
Each jet black lens features a mesmerizing thin white line that spirals toward the center of the pupil....
The opaque outer circle will white-out even the darkest iris, making your pupil the only spot of black in a sea of white....
Yellow flames radiate out from the center of eye, held in check by the fire-engine red perimeter....
Medicine Products: