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seasonal affective disorder

a mood disorder characterized by depression, extreme lethargy, increased need for sleep, overeating, and carbohydrate craving. It recurs each year in one or more specific seasons, most commonly the winter months, and is hypothesized to be related to melatonin levels.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.


Abbreviation for seasonal affective disorder.
Farlex Partner Medical Dictionary © Farlex 2012


seasonal affective disorder
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

seasonal affective disorder

A clinical form of depression with an onset in the late fall and remission in the spring; female:male ratio, 2:1.

Uncertain; reduced daily sunlight causes a drop in serotonin; PET scan data has linked depression to an increased in blood flow through the anterior limbic system, which may ultimately lead to hypoactivity; melatonin is decreased in women in summer and unchanged in men.
Some SAD patients respond to high-intensity light, which alters the circadian rhythm, a therapy that is most effective in the morning; a light intensity of 10,000 lux viewed at close range may reset the biological clock.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.


Seasonal affective disorder, see there.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.


Abbreviation for seasonal affective disorder.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

Seasonal affective disorder (SAD)

Amooddisorder characterized by depression during the winter months. An estimated 11 million Americans experience SAD.
Mentioned in: Phototherapy
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.


Abbreviation for seasonal affective disorder.
Medical Dictionary for the Dental Professions © Farlex 2012

Patient discussion about SAD

Q. I may be healthier now, but miserable… I’ve not been smoking for a whole month (my longest period in the last decade), and I do feel a bit better physically, but it seems that I lost the joy of life – I don’t go out with my friends any more (because they’re all smokers), I envy other smokers, and generally I feel nervous and dull. Will it be like that forever or is there hope?

A. Well, try to think about what are you missing? The foul smell? The yellow teeth? The feeling of suffocating next morning? Whenever you feel longing to cigarettes, try to think again why you stopped smoking- and it’d help you to keep with it.

Q. i get in to depression suddenly from a very calm mood. I get in to depression suddenly from a very calm mood. I am having a high mood swing for nearly a year. Sometimes I become crazy and start to jump on the roads. The other minute I do remember something from past and go in to deep depression. Due to this continuous change in my mood I am not able to concentrate on my studies. With this behavior I have lost some of my good friends too. This has put me in continuous stress and I have almost forgotten my good night sleep. My friends say that I am a bipolar….

A. Rohan,
The others are right, it would be benificial to you to seek professional help... You are saying that you have things in your past that are causing you stress, those things need to be worked through with a professional. You do not hve to continue suffering... Seek a proper diagnosis and you will get treatments that can help you feel much better...

Q. I’m often getting mood swings and depression. I’m fresher to my college. I’m often getting mood swings and depression. I don’t have close friend in this college, to share my thoughts. And I think there’s no point in life. And I don't want to do anything. Help me.

A. Well, depression and mood swings are common to all. So don’t worry about that. You need to talk to someone who is close to you and try to talk with your doctor, and a small amount of meds will help out a lot and won’t make you sick. Good luck!!!

More discussions about SAD
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References in periodicals archive ?
DOWNBEAT: Frank Field, left, and his | |Emoji profile, above, was one of the Emoji profile, above, was one of the "saddest" of the MPs studied "saddest" of the MPs studied
Scotland's saddest Christmas has been decorated at last after we got involved to end a standoff.
For instance, the day Osama bin Laden was killed is ranked as one of the saddest days on record, thanks to an increase in the use of words like "death," "dead" and "killed." Perhaps more understandable, but still somewhat surprising, is the day that showed the most significant drop in mood: June 25, 2009, the day Michael Jackson died.
Listeners of the BBC's Today programme voted the Adagio for Strings the "saddest" classical work ever written a few years ago and it has become an iconic American piece, frequently played at times of sorrow.
An inconsolable Tim Cahill has described his red card in Australia's 4-0 defeat to Germany in their World Cup opener as the saddest moment of his career before breaking down in tears in front of the media.
To donate to the Help the Aged "1 is the saddest number" call 0207 239 1983 or visit
What I find saddest about this story is not that the lamentable CSA could not get the parents to pay up, but that we live in a society where parents do not care about their children's needs and run away from their responsibilities.
Perhaps that is the saddest lesson of all, the realization that wrongs can no longer be undone, that there is no time left to become someone we ourselves consider admirable.
Using a shortlist by the Official UK Charts Company, he measured "tune trigger quotient" measuring heart rate, respiratory response and skin temperature to find the saddest, happiest and most exhilarating tracks.
"The saddest thing I have seen is veterans who wait years and years to get help, allowing these things to eat away at them so much that it has in many cases ruined their lives.
In many ways, the saddest part of Ruth's life was after his career was over.
Marlvin Jiro's wife Danai said the 'saddest loss' would be to the 26 year-old's two children.