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:10/22/2014)... With the Affordable Care Act (ACA) open enrollment period ... for Research (AIR) finds that three out of four Americans ... 42 percent say they are not likely or only somewhat ... coverage. , The AIR survey found wide gaps in Americans’ ... correctly how much they owe for a routine doctor’s visit. ...
(Date:10/22/2014)... 2014 Although there are only 24 hours in ... people who have trouble finding time within their busy schedules for ... long periods of time to get in shape. Here are five ... the go. , Change Up Your Commute , Consider riding ... add some exercise into your daily routine. If you must use ...
(Date:10/22/2014)... Maureen Salamon HealthDay Reporter ... women undergoing in vitro fertilization (IVF) are only about half ... popular assisted reproduction technique, new research indicates, and the racial ... the study, about 31 percent of white patients became pregnant ... Analyzing more than 4,000 IVF cycles over two years ...
(Date:10/22/2014)... Dennis Thompson HealthDay Reporter ... officials on Monday officially tightened guidelines for health workers treating ... exposure and use of a respirator at all times. ... issue the tougher rules after two Dallas nurses contracted Ebola ... United States, Liberian national Thomas Eric Duncan. Nina Pham is ...
(Date:10/20/2014)... 2014 The Advocator Group, LLC ... the American Foundation for Suicide Prevention’s (AFSP) Out of ... a not-for-profit organization that hosts hundreds of community walks ... events are used to help understand and prevent suicide ... relationships as well. , The Advocator Group shares ...
Breaking Medicine News(10 mins):Health News:Many Americans Fail to Ask Basic Questions Before Signing Up for Health Insurance, National Survey Finds 2Health News:Many Americans Fail to Ask Basic Questions Before Signing Up for Health Insurance, National Survey Finds 3Health News:Many Americans Fail to Ask Basic Questions Before Signing Up for Health Insurance, National Survey Finds 4Health News:HealthGuideMD Presents Ways to Improve Your Exercise and Fitness 2Health News:Black Women Fare Worse With Fertility Treatments, Study Says 2Health News:Black Women Fare Worse With Fertility Treatments, Study Says 3Health News:CDC Tightens Rules on Caring for Ebola Patients 2Health News:CDC Tightens Rules on Caring for Ebola Patients 3Health News:The Advocator Group, LLC is Proud to Participate in an Out of the Darkness Community Walk, October 25th, to Increase Suicide Awareness 2Health News:The Advocator Group, LLC is Proud to Participate in an Out of the Darkness Community Walk, October 25th, to Increase Suicide Awareness 3
... study by the American Psychological Association (APA) has found ... and young// women in advertising and media is harmful ... complete the report, the APA Task Force on the ... and effects of virtually every form of media, including ...
... successfully developed artificial teeth that they say could replace ... similar procedures in humans. ,In the technique, ... implanted into the mouths of adult mice and said ... the online edition of Australia's The Daily Telegraph. ...
... actor Saif Ali Khan, who was rushed to a city ... better and recovering from severe exertion, hospital sources said Monday. ... will be kept under observation for the next two days, ... 36, was rushed to Lilavati Hospital Sunday evening after suffering ...
... needle in the haystack as years of scientific slogging ... unknown genetic material that causes autism. ,The ... treatment of autism has been met with considerable excitement ... international team from 8 countries and led by Canadian ...
... its concerns about HIV-infected cases growing by leaps and bounds in ... the country’s most remote regions. , Talking ... 169,000 to 216,000 HIV cases in the most populous Muslim ... million. ,Higher incidences are seen among a special ...
... been closed to patients and visitors after an outbreak of ... members of the hospital and many patients have been affected ... for causing disorders affecting the intestine resulting in severe vomiting, ... last for two to three days but are severely pronounced ...
Cached Medicine News:Health News:Sexualization Linked to Mental Health Problems in Girls and Women 2Health News:New Gene Linked to Autism Discovered 2
(Date:10/22/2014)... 2014  Early symptoms of diabetic eye and ... new technology, coupled with yearly, comprehensive eye exams, ... detection of eye diseases, including those associated with ... left untreated, these diseases can potentially lead to ... Recently, optometric researchers have deployed a new tool ...
(Date:10/22/2014)... 2014 Influenza will affect as many as 200,000 ... the United States as high as 49,000 people.  ... is from person to person in respiratory droplets of coughs ... of death, but kills much fewer people each year than ... human fluids including sweat, saliva, blood and other bodily fluids. ...
(Date:10/22/2014)... InVivo Therapeutics Holdings Corp. (OTCQB: NVIV) based ... spinal cord injury (SCI) treatment with their novel Neuro-Spinal ... tissue regrowth in the spinal cord area when cells ... approved polymer, the scaffold ultimately breaks down to water ... body. NVIV has recently attracted significant investor attention with ...
Breaking Medicine Technology:Technology Advancements Enhance Early Detection of Eye Diseases Associated with Diabetes 2Technology Advancements Enhance Early Detection of Eye Diseases Associated with Diabetes 3WholeHealth Products is proud to be releasing its Influenza A and B combo test, on the heels of the announcing of its phase 2 completion of the Rapid Ebola Test 2InVivo Therapeutics Analyst Coverage Initiated: Analyst Report by BrokerBank Securities, Inc. 2InVivo Therapeutics Analyst Coverage Initiated: Analyst Report by BrokerBank Securities, Inc. 3
... SIRO Clinpharm, a leading full service Clinical Research Organization ... SIRO has developed a long term plan to align with ... charter is to transform SIRO into a global leader in ... continuing to build and enhance the biopharma service catalog for ...
... 2012  Amgen Inc. ("Amgen") (NASDAQ: AMGN ) announced ... tender offer (the "Offer") by a wholly owned subsidiary, "Merger ... Micromet, Inc. ("Micromet") (NASDAQ: MITI ) for $11.00 ... 12:00 midnight, New York City time, at the end of ...
Cached Medicine Technology:SIRO Clinpharm Announces Appointment of Gopakumar Menon as Chief Executive Officer to Lead the Global Clinical Research Organization 2Amgen Completes Tender Offer for Outstanding Shares of Micromet, Inc. 2Amgen Completes Tender Offer for Outstanding Shares of Micromet, Inc. 3Amgen Completes Tender Offer for Outstanding Shares of Micromet, Inc. 4
Stainless steel plain Steinman Pins available in point types A through F....
Full pin skeletal traction pins with cove point....
Calibrated Guide Pins have a 12.7 mm calibration and are available in plain, with a threaded tip, or with a trocar point....
Knowles Pins are available in 9" (228mm) overall length with 9/64" (3.5mm) shaft diameter and 1/4" (6.4mm) square bead....
Medicine Products: