Navigation Links
Bright Lights at Night May Raise Diabetes Risk

FRIDAY, Jan. 14 (HealthDay News) -- Exposure to bright artificial light between dusk and bedtime can reduce the quality of your sleep and may increase the risk of high blood pressure and diabetes, new research has found.

The study included 116 healthy participants, aged 18 to 30, who were exposed to either bright room light or dim light for eight hours before bedtime for five consecutive days. Blood plasma was collected every 30 to 60 minutes, to check the volunteers' levels of melatonin, a hormone produced at night by the pineal gland in the brain.

Melatonin regulates the sleep-wake cycle and has been shown to regulate blood pressure and body temperature.

The study found that exposure to bright room light before bedtime shortened the duration of melatonin production by about 90 minutes, compared to exposure to dim light. In addition, exposure to bright room light during the usual hours of sleep suppressed melatonin by more than 50 percent.

The study is scheduled for publication in the March issue of the Journal of Clinical Endocrinology & Metabolism.

"Given that chronic light suppression of melatonin has been hypothesized to increase relative risk for some types of cancer and that melatonin receptor genes have been linked to type 2 diabetes, our findings could have important health implications for shift workers who are exposed to indoor light at night over the course of many years," study author Joshua Gooley, of Brigham and Women's Hospital and Harvard Medical School in Boston, said in a news release from the Endocrine Society.

"Further research is still needed to both substantiate melatonin suppression as a significant risk factor for breast cancer and determine the mechanisms by which melatonin regulates glucose metabolism," Gooley added.

More information

The U.S. National Institute of Neurological Disorders and Stroke has more about sleep.

-- Robert Preidt

SOURCE: The Endocrinology Society, news release, Jan. 12, 2011

Copyright©2010 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. GNC Announces Entry to Chinas Nutritional Products in Partnership with Bright Food
2. Daylight Savings: Not a Bright Time for All
3. Best Selling, Non Toxic Skin Brightener Does the Job Using Safe, Healthy Ingredients and Introduces New Anti Aging Ingredients
4. Bright Horizons Honored as Company that Cares for Third Straight Year
5. SAFC Hitech(R) Well Positioned for High-Brightness LED Manufacturing Boom With TMG Expansion at Bromborough UK Plant
6. Rugged High Bright Touch Screen Computer Designed and Tested for the Most Extreme Environments
7. CWRU global TB expert receives prestigious Fulbright Scholar Award
8. Epione Reveals a ‘Bright' New Solution for Dull, Sun Damaged Skin
9. Bright Green Leadership Partners with TriplePundit to Help Businesses Improve Their Green Marketing Online
10. Highlighting a Bright Spot in a Down Economy, Career Step to Re-launch Online Healthcare Training Program
11. Fulbright Award has UC educator examining health challenges in China
Post Your Comments:
Related Image:
Bright Lights at Night May Raise Diabetes Risk
(Date:6/25/2016)... (PRWEB) , ... June 25, 2016 , ... ... health policy issues and applications at AcademyHealth’s Annual Research Meeting June 26-28, 2016, ... work on several important health care topics including advance care planning, healthcare costs ...
(Date:6/25/2016)... ... 25, 2016 , ... First Choice Emergency Room , the largest network ... the Medical Director of its new Mesquite-Samuell Farm facility. , “We are pleased ... location,” said Dr. James M. Muzzarelli, Executive Medical Director of First Choice Emergency Room. ...
(Date:6/25/2016)... ... 25, 2016 , ... Conventional wisdom preaches the benefits of moderation, whether it’s ... setting the bar too high can result in disappointment, perhaps even self-loathing. However, those ... goal. , Research from reveals that behind the tendency to ...
(Date:6/24/2016)... ... , ... Marcy was in a crisis. Her son James, eight, was out of control. Prone ... physically. , “When something upset him, he couldn’t control his emotions,” remembers Marcy. “If ... at my other children and say he was going to kill them. If we ...
(Date:6/24/2016)... ... June 24, 2016 , ... Comfort Keepers® of San ... Society and the Road To Recovery® program to drive cancer patients to and from ... adults to ensure the highest quality of life and ongoing independence. Getting to ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... 2016 Dublin ... addition of the " Global Markets for Spectroscopy ... This report focuses on the ... review, including its applications in various applications. The report ... includes three main industries: pharmaceutical and biotechnology, food and ...
(Date:6/24/2016)... Research and Markets has announced the ... Tests" report to their offering. ... The World Market for Companion Diagnostics covers the ... analysis in the report includes the following: ... Kits) by Region (N. America, EU, ROW), 2015-2020 , ...
(Date:6/23/2016)... HOUSTON , June 23, 2016  MedSource ... platform as its e-clinical software solution of choice.  ... the best possible value to their clients by ... nowEDC.  The preferred relationship establishes nowEDC as the ... pricing for MedSource,s full-service clients.  "nowEDC has long ...
Breaking Medicine Technology: