Navigation Links
Natural light in office boosts health
Date:8/8/2014

CHICAGO -- Office workers with more light exposure at the office had longer sleep duration, better sleep quality, more physical activity and better quality of life compared to office workers with less light exposure in the workplace, reports a new study from Northwestern Medicine and the University of Illinois at Urbana-Champaign.

The study highlights the importance of exposure to natural light to employee health and the priority architectural designs of office environments should place on natural daylight exposure for workers, the study authors said.

Employees with windows in the workplace received 173 percent more white light exposure during work hours and slept an average of 46 minutes more per night than employees who did not have the natural light exposure in the workplace. There also was a trend for workers in offices with windows to have more physical activity than those without windows.

Workers without windows reported poorer scores than their counterparts on quality of life measures related to physical problems and vitality, as well as poorer outcomes on measures of overall sleep quality and sleep disturbances.

The study was reported in the Journal of Clinical Sleep Medicine in June.

"There is increasing evidence that exposure to light, during the day, particularly in the morning, is beneficial to your health via its effects on mood, alertness and metabolism," said senior study author Phyllis Zee, M.D., a Northwestern Medicine neurologist and sleep specialist. "Workers are a group at risk because they are typically indoors often without access to natural or even artificial bright light for the entire day. The study results confirm that light during the natural daylight hours has powerful effects on health."

Zee is the Benjamin and Virginia T. Boshes Professor of Neurology at Northwestern University Feinberg School of Medicine and director of the Sleep Disorders Center at Northwestern Memorial Hospital.

"Architects need to be aware of the importance of natural light not only in terms of their potential energy savings but also in terms of affecting occupants' health," said co-lead author Mohamed Boubekri, an associate professor of architecture at the University of Illinois at Urbana-Champaign.

A simple design solution to augment daylight penetration in office buildings would be to make sure the workstations are within 20 to 25 feet of the peripheral walls containing the windows, noted Boubekri. "Daylight from side windows almost vanishes after 20 to 25 feet from the windows," he said.

The study group included 49 day-shift office workers; 27 in windowless workplaces and 22 in workplaces with windows. Health-related quality of life and sleep quality were measured with a self-reported form and sleep quality was evaluated with the Pittsburgh Sleep Quality Index (PSQI). Light exposure, activity and sleep were measured by actigraphy in a representative subset of 21 participants; 10 in windowless workplaces and 11 in workplaces with windows.

Actigraphy is a single device worn on the wrist that gives measures of light exposure as well as activity and sleep. This is an ambulatory physiological data logger that records motion and light illuminance. The motion was used to determine activity levels during waking time and to calculate sleep time. The light luminance was used for measures of light exposure during the workday period.

"Light is the most important synchronizing agent for the brain and body," said Ivy Cheung, co-lead author and Ph.D. candidate in neuroscience in Zee's lab at Northwestern. "Proper synchronization of your internal biological rhythms with the earth's daily rotation has been shown to be essential for health."

Also, people who get more light during the day may sleep better at night, which can also help improve health, Zee noted.

Other authors include Kathryn Reid from Northwestern and Chia Hui-Wang from the University of Illinois.


'/>"/>
Contact: marla Paul
marla-paul@northwestern.edu
312-503-8928
Northwestern University
Source:Eurekalert

Related medicine news :

1. OZ Naturals to Launch Its Products in the Europe
2. Relizen®, a Natural, Non-Estrogenic Therapy for Hot Flashes Associated with Menopause, Launches in the U.S.
3. Sunstone Extends Partnership With EnergyFirst’s All-Natural Sports Supplements
4. Nourish Skin With Entirely Natural Daily Body Oil from Sublime Beauty® On Sale Now
5. Flat Belly Forever Review Reveals How to Lose Belly Fat Quickly and Naturally
6. CVS Caremark Adds New, Natural Acclaimed Hair Care Line to its Beauty Roster
7. H Miracle Review Exposes Natural Method to Cure Hemorrhoids
8. Natural Multiple Sclerosis Treatment Review Reveals the Inside Story to Gary M. Levin’s Cure Program
9. Natural Cure for Yeast Infection Review Reveals Sarah Summer’s Healing Method
10. Leaky Gut Cure Review Reveals Karen Brimeyer’s Natural Way to Heal Leaky Gut
11. Natural Vitiligo Treatment System Review Reveals Michael Dawson’s New Vitiligo Cure Program
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/13/2016)... ... ... Many individuals looking to lead a healthy lifestyle have decreased carbohydrate consumption and ... Fitness has delved into this niche allowing those giving up their beloved pasta a ... 30 grams of protein and only 7 grams of carbohydrates per 50 gram serving--a ...
(Date:2/13/2016)... Salt Lake City, Utah (PRWEB) , ... February 13, 2016 , ... When an ... kids, Host Parents aren’t always sure what they are in for and they are often ... Pairs are more than they were hoping for. This year’s Au Pair of the Year ...
(Date:2/12/2016)... ... February 12, 2016 , ... The law firm of Morrow, ... Parishes. The purpose of these scholarships is to encourage applicants to pursue a ... seek employment within these two parishes. , “We have available jobs in St. ...
(Date:2/12/2016)... (PRWEB) , ... February 12, 2016 , ... Each year, ... will be held in Anaheim, CA at the Anaheim Convention Center. Almost 10,000 physical ... see new therapy products in action, learn more about their chosen field and network ...
(Date:2/12/2016)... FL (PRWEB) , ... February 12, 2016 , ... ... as a Service (WaaS), today announced the integration of Clarity Intelligence Platform (CIP) ... channel partners to offer real-time business intelligence (BI) to their small and medium ...
Breaking Medicine News(10 mins):
(Date:2/12/2016)... , Feb. 12, 2016  Diplomat Pharmacy, Inc. (NYSE: DPLO ) is pleased to announce ... Management and Payor Strategies effective Jan. 23, 2016. ... ... ... Specialty Pharmacy ...
(Date:2/12/2016)... NY , Feb. 12, 2016 /PRNewswire/ - Demers Ambulances announces ... to Okaloosa County Emergency ... Type III ambulances and one LT2 van. Quality Emergency Vehicles ... dealer, is responsible for the sale.  This is the latest ... LaFortune , Executive Vice President at Demers. --> ...
(Date:2/12/2016)... --  HeartWare International, Inc . (NASDAQ: HTWR ) ... its financial results for the three and 12 months ... at 8:00 a.m. ET.  The company plans to release ... webcast.  On the conference call and webcast, management will ... quarter and business outlook.   --> ...
Breaking Medicine Technology: