Navigation Links
Aging eyes linked to sleepless nights, new study shows
Date:8/31/2011

DARIEN, IL A natural yellowing of the eye lens that absorbs blue light has been linked to sleep disorders in a group of test volunteers, according to a study in the September 1 issue of the journal Sleep. As this type of lens discoloration worsened with age, so did the risk of insomnia.

"The strong link between lens yellowing and age could help explain why sleep disorders become more frequent with increasing age," said Line Kessel, M.D., Ph.D., the study's lead author.

In the Danish study, 970 volunteers had their eyes examined by lens autofluorometry, a non-invasive method for determining how much blue light is transmitted into the retina. Blue light is a portion of the visible-light spectrum that influences the normal sleep cycle by helping initiate the release of melatonin in the brain. Melatonin is a hormone that helps signal to the body when it is time to be sleepy or alert.

Volunteers were considered to have a sleep disorder if they confirmed that they "often suffer from insomnia" or if they purchased prescription sleeping pills within the last 12 months. Of those classified as having a sleep disturbance, 82.8 percent affirmed that they both suffered from insomnia and used sleep medication.

Using this data, researchers calculated an inverse relationship between blue light transmission and the risk of having sleep disturbances: the lower the blue light transmission into the retina due to a yellowing of the eye lens, the greater the risk of sleep disturbances.

"The results showed that while age-related lens yellowing is of relatively little importance for visual function, it may be responsible for insomnia in the elderly," said Kessel, a senior scientist in the Department of Opthalmology at Glostrup Hospital in Denmark.

Significantly higher rates of sleep disorders were reported by older participants, women, smokers and those with diabetes mellitus. Previous studies have shown that the rate
'/>"/>

Contact: Doug Dusik
ddusik@aasmnet.org
630-737-9700
American Academy of Sleep Medicine
Source:Eurekalert

Page: 1 2

Related medicine news :

1. Researchers share discoveries about aging-related changes in health and cognition
2. For Women, Active Sex Life May Mean Better Aging
3. Aging authorities differ on tweaks to Social Securitys benefit structure
4. New imaging test gives physicians better tool to diagnose Parkinsons disease
5. Sexual satisfaction tied to overall successful aging as reported by women age 60 to 89
6. U of T research shows anti-aging techniques not yet viewed as acceptable
7. Imaging probe allows noninvasive detection of dangerous heart-valve infection
8. University of Kentucky Sanders-Brown Center on Aging receives $7 million from NIA
9. Jette to receive GSAs 2011 Excellence in Rehabilitation of Aging Persons Award
10. UCI-led study links prenatal exposure to stress with accelerated cell aging
11. New high-speed 3-D imaging system holds potential for improved cancer screening
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/22/2014)... (PRWEB) August 22, 2014 Key West ... care experts revealed their much anticipated study results of ... skin today and released an accompanying infographic on their ... in can have a major impact on the skin ... wrinkles and more. , When asked how they determined ...
(Date:8/22/2014)... (ESMO), the leading pan-European organisation representing medical oncology ... individuals receiving the Society,s esteemed annual awards. The ... Joensuu and Peter Boyle on the occasion of ... , Carsten Bokemeyer will receive the ESMO Award ... cancer discovery into real benefit at patient level. ...
(Date:8/22/2014)... provides insight on how the brain processes external input ... and sides of the body, in order to select ... in the journal Neuron , show that the ... of sensory information, with specialised functional roles for the ... input structure in the basal ganglia, and is typically ...
(Date:8/22/2014)... the leading pan-European organisation representing medical oncology professionals, ... receiving the Society,s esteemed annual awards. The awards ... and Peter Boyle on the occasion of the ... Carsten Bokemeyer will receive the ESMO Award for ... discovery into real benefit at patient level. 1 ...
(Date:8/22/2014)... News) -- The air in American cities is getting ... Thursday. Significant progress has been made in reducing ... decades, the agency said in a news release. ... reduction in mercury from human sources such as coal-fired ... 84 percent fall in lead, which harms brain development ...
Breaking Medicine News(10 mins):Health News:Key West Health & Beauty Announces The 12 Best & Worst U.S. Cities For Skin Study 2Health News:ESMO honors outstanding oncology professionals 2Health News:ESMO honors outstanding oncology professionals 3Health News:The striatum acts as hub for multisensory integration 2Health News:ESMO honours outstanding oncology professionals 2Health News:ESMO honours outstanding oncology professionals 3Health News:Air in U.S. Cities Getting Cleaner, EPA Says 2
... you’ll end up with breast cancer? ,Maybe, find researchers who ... for one year. Their research finds those who ate a ... or vegetables a day had lower levels of the hormone ... diets. ,The study stemmed from previous research indicating ...
... headed for a historic vote Friday night on a bill ... biggest expansion // of the politically popular entitlement program in ... the stars have lined up in our favor," House Speaker ... Capitol. "The time is upon us. It's now or never." ...
... supplement could significantly reduce the number of people with vision ... study.// ,AMD, which is caused by a deterioration of ... older people. A couple of years ago, researchers conducted a ... vitamins C, E, and beta carotene, along with zinc oxide ...
... is so easily cured that Luvie Owens almost forgot she ... her cause for concern: Women who have had the most ... to also get deadlier cancers such as breast, lung and ... is 7.5 times higher. ,The study didn't include men, ...
... or PET, markedly increase the ability of doctors to ... grow older.//That's the main finding from the first large ... older people who complain of mild memory problems. ... 4 million people in the United States. Optimal treatment ...
... marrow stem cells may help restore damaged muscle caused ... Heart //Association’s Scientific Sessions 2003 presented their study, which ... place in 2001. Results from that trial showed a ... bone marrow had improved heart function. ,In the ...
Cached Medicine News:Health News:House heads for Medicare drug vote, 2Health News:House heads for Medicare drug vote, 3Health News:People with skin cancer at higher risk for other types , 2Health News:Brain Scans Help Predict Alzheimer's Disease 2
(Date:8/21/2014)... , Aug. 21, 2014 /CNW/ - The Canadian Epilepsy ... new comic series designed to educate children about the most ... The Medikidz Explain Epilepsy comic series tells a ... is navigating middle school while living with epilepsy. ... Canadians, there is still so much misinformation and lack of ...
(Date:8/21/2014)... , Aug. 21, 2014  Seventy-one percent of Americans ... OxyContin is a serious public health and safety issue in ... from a survey released today by Repass & Partners, a ... "Americans understand the severity of the prescription medication ... progress with this very serious health situation facing our country," ...
(Date:8/21/2014)... , Aug. 21, 2014 InfinityQS International, ... Manufacturing Intelligence , today announces Infusion Chicago, ... event will be held Oct. 9-10, 2014, at ... designed to showcase the necessity for implementing a ... and Manufacturing Intelligence to gain insight into production ...
Breaking Medicine Technology:Action Heroes Harness Powers to Educate Children About Epilepsy 2Action Heroes Harness Powers to Educate Children About Epilepsy 3Consumers Desperate For Measures To Curb Prescription Drug Abuse 2Consumers Desperate For Measures To Curb Prescription Drug Abuse 3InfinityQS to Host Manufacturing Intelligence Conference in Chicago 2
... ... , LONDON, Dec. 14 A new solution developed by IBM ... Malaria Partnership, is helping to save lives using everyday technology to ... , (Photo: http://www.newscom.com/cgi-bin/prnh/20091214/NY25146-a ) , (Photo: ...
... , GENEVA, Switzerland, December 14 ... Meeting was held,in Bermuda on 7th December. In excess of ... and overwhelmingly approved all the resolutions,put forward. , ... Shortt of Galmoy,as the new Director of Corporate Communications. In ...
Cached Medicine Technology:Saving Lives with SMS for Life 2Saving Lives with SMS for Life 3Saving Lives with SMS for Life 4Saving Lives with SMS for Life 5Calcitech Holds Annual General Meeting 2
... Powerful refrigerated floor-standing centrifuge. Mobile ... rotors, large choice of accessories, analog ... detection & shutdown (JOUAN patented pendulum ... current and temperature limitation, rugged motor, ...
... high and low speed refrigerated centrifuge. ... AUTO-LOCK JOUAN patented system, comprehensive control ... Lifetime reproducibility, individual password protection of ... rates (100 run profiles), powerful refrigeration ...
GP8RF is a powerful 3-liter ventilated centrifuge which is flexible, easy to use and fit on, beside or below the lab bench. Performs separations 50-100% faster than the rest, powerful, accommodating ...
... refrigerated. The Centra-CL3 is ideal for ... (meeting US OSHA Bloodborne Pathogen Final ... Falcon/Corning conicals, large volume concentrations up ... pelleting and many other industrial, research ...
Medicine Products: