Navigation Links
Daylight Savings: Not a Bright Time for All
Date:3/12/2010

People with SAD may be more affected by the shift in daylight, experts say ,,,,

FRIDAY, March 12 (HealthDay News) -- Most people will welcome the start of daylight savings time this Sunday because it starts to stay light longer, even if that means the early mornings will be dark once again.

However, that shift may not be such a welcome change for people with seasonal affective disorder (SAD), a seasonal depression that occurs in the fall and winter and is caused, at least in part, by the lack of daylight during these seasons. Some experts suspect that light in the morning may be especially important for helping people with SAD, as well as for jumpstarting circadian rhythms in all people.

"In general, in terms of normal sleep patterns, daylight in the morning is better than light later in the day. Remember, our circadian rhythms were set eons ago to a rhythm that didn't include daylight savings time, so the shift tends to throw people off a bit," said Dr. Nicholas Rummo, director of the Center for Sleep Medicine at Northern Westchester Hospital in Mt. Kisco, N.Y.

"Daylight savings time is anti-physiologic, and it's a little deleterious, at least for several days," he said, adding that research has shown that the rate of auto accidents goes up slightly in the days following the change to daylight savings time.

For people with SAD, he noted, the shift in daylight may be even more difficult. "Normally, people with SAD start to feel better around this time of the year, and light earlier in the day is more helpful for them," said Rummo.

Seasonal affective disorder is a type of depression that appears during the colder months of the year, and symptoms tend to be at their worst in January and February, according to the American Psychiatric Association. Symptoms of SAD include fatigue, a lack of interest in usual activities, social withdrawal, weight gain and a craving for foods high in carbohydrates, according to the association.

"The hallmark of seasonal affective disorder is a pattern of depression that occurs in the fall and winter months that improves in the spring. There's a definite seasonal pattern," explained Dr. Emil Coccaro, the E.C. Manning professor and chairman of the department of psychiatry and behavioral neuroscience at the University of Chicago. "They have a major depression in the fall and winter when there's less light and they recover when there's more and more light."

The main treatment for SAD is exposure to bright lights, he said. And, during the fall and winter, people with SAD do this using light boxes that flood extra light into an area.

Previous research, reported in the Proceedings of the National Academies of Sciences, has suggested that bright light treatment is most effective when done in the morning for people with SAD.

Rummo said that people on the Western edges of a time zone, and those living in Northern areas, may be affected a little bit more because they already experience more darkness in the morning.

"This is something that people should be a little bit aware of," said Rummo. But, he noted, it's also important to remember that it is just an hour, and everyone, including people with SAD, will eventually adjust to the switch.

And, Coccaro added that for people with SAD, the amount of light you're exposed to during the day is likely more important than the timing of that light exposure.

More information

Read more about seasonal affective disorder from the National Alliance on Mental Illness.



SOURCES: Nicholas Rummo, M.D., sleep specialist and director, Center for Sleep Medicine, Northern Westchester Hospital, Mt. Kisco, N.Y.; Emil Coccaro, M.D., E.C. Manning Professor, and chairman, department of psychiatry and behavioral neuroscience, University of Chicago


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. Bodys Clock Never Adjusts to Daylight Savings Time
2. Surviving Daylight Saving Switch
3. Move to Daylight Savings Time Increases Risk of Drowsy Driving
4. End of Daylight Saving Time Could Be Heart-Wrenching
5. Switch to Daylight Savings Time Will Launch First Annual Sedation Dentistry Safety Week Hosted by DOCS Education
6. AirWare, Inc., Maker of Brez(R) Premium Breathing Aids Offers Tips for Safely and Soundly Springing Ahead During the Switch to Daylight Savings Time
7. Replace Smoke and CO Alarm Batteries This Sunday for Daylight Saving Time
8. Daylight could help control our weight
9. Daylight-saving time leads to less sleep, more injuries on the job
10. Daylight-Saving Time Switch May Leave You Sleepy, U-M Physician Says
11. Millions in Potential Health Care Savings: Prefab Orthotics Found More Effective
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/13/2017)... ... October 13, 2017 , ... Global Healthcare Management’s 4th ... Park in Milford, NJ. This free event, sponsored by Global Healthcare Management’s CEO, ... The fun run is geared towards children of all ages; it is a non-competitive, ...
(Date:10/13/2017)... ... ... “The Journey: From the Mountains to the Mission Field”: the story of a ... “The Journey: From the Mountains to the Mission Field” is the creation of published ... all ages and currently teaches a class of ladies at her church, which she ...
(Date:10/12/2017)... ... October 12, 2017 , ... Planet Fitness, one of the largest and ... plans to open a flagship location in Covington, LA at 401 N. U.S. Highway ... store next to Office Depot in the Holiday Square shopping center. Its location allows ...
(Date:10/12/2017)... ... October 12, 2017 , ... ... in post-acute health care, have expanded their existing home health joint venture through ... AccentCare has been operating a joint venture home health company with Asante, delivering ...
(Date:10/12/2017)... , ... October 12, 2017 , ... Leading pediatric oncology ... in Washington, D.C., for the 49th Congress of the International Society of Paediatric ... President of the Center for Cancer and Blood Disorders at Children’s National, ...
Breaking Medicine News(10 mins):
(Date:10/11/2017)... MENLO PARK, Calif. , Oct. 11, 2017 /PRNewswire/ ... a national scientific team that developed an innovative way ... and quantity of the delivery of new drugs. ... the 2017 Fall Clinical Dermatology Conference will show how ... Massachusetts General Hospital, Harvard Medical School used a suite ...
(Date:10/10/2017)... 10, 2017  NDS received FDA 510(k) clearance in May 2017 ... display stand specifically designed for endoscopy environments. An innovative secondary monitor ... clinical solution to support the improvement of patient outcomes, procedural efficiency, ... ... ...
(Date:10/4/2017)... Korea , Oct. 4, 2017  South Korean-based ... next-generation CPR training aide "cprCUBE" on Kickstarter. The device ... compression during cardiac arrests with better efficiency compared to ... also offers real-time feedback on efficacy of the compression ... crowdfunding campaign has a goal to raise $5,000. ...
Breaking Medicine Technology: