Washington University School of Medicine

Environmental Health & Safety

Phone:  (314) 362-6816
Fax:       (314) 362-1995

esafety@msnotes.wustl.edu

Safety Topic of the Month:  January 2001

SEASONAL AFFECTIVE DISORDER (SAD)

NA00051_.WMF (14510 bytes)The Winter Blues

10 to 25 million Americans experience depression that recurs in seasons with less daylight.  Most affected people are women, although SAD may occur in men and children. "Affective" means "emotional," and some of the primary effects of SAD relate to feelings.  Yet SAD affects behavior as well.

Signs and symptoms of SAD include:

bulletDepression
bulletLoss of energy
bulletAnxiety
bulletIrritability
bulletIncreased sleep
bulletLoss of interest in sex
bulletOvereating, especially foods high in carbohydrates
bulletWeight gain
bulletDifficulty concentrating and processing information

Treatment:

Light therapy is currently the treatment of choice.  This involves exposing people to special lamps that are 10 to 20 times brighter than ordinary indoor lights.  Three studies published in the October 1998 issue of Archives of General Psychiatry concluded that such light therapy is most effective when administered as the first thing upon waking up in the morning.

If you're diagnosed with SAD, you can also make lifestyle changes.

For example:

bulletIncrease the amount of light in your home. Add lamps or skylights.
bulletWalk outdoors on sunny days, even during winter.
bulletIf possible, take winter vacations in a sunny, warm location.
bulletExercise regularly.
bulletExperiment with sleeping less and eating fewer carbohydrates.
bulletLearn ways to manage stress.

Information provided from the following website

bulletMayo Clinic
http://www.mayohealth.org/mayo/9602/htm/sad.htm

Other Links

bulletInternet Mental Health
www.mentalhealth.com/book/p40-sad.html
bullet@health.com
http://athealth.com/Practitioner/Newsletter/FPN_3_2.html
bulletAlaska Currents
http://www.go2net.org/health/sad.html
bulletLycos health with webnet MD
http://webmd.lycos.com/content/dmk/dmk_summary_account_1173
WB01219_.GIF (740 bytes)PREVIOUS SAFETY TOPICS OF THE MONTH
Beat the Heat, August 1999
Fire Safety, September 1999
Holiday Safety, November 1999
Time Management, December 1999
Accident Prevention, January 2000
Workplace Violence, February 2000
Sick Building Syndrome, March 2000
Personal Protective Equipment, April 2000
Hand-Transmitted Infection, May 2000
Tornadoes, June 2000
Summer Safety, July 2000
Campus Safety, August 2000
Asbestos, September 2000
Fire Prevention, October 2000
Carbon Monoxide, November 2000
Slips, Trips, and Falls, December 2000
Holiday Travel Safety, December 2000

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