Subtypes of depression

Oftentimes, depression is divided into subtypes.  These subtypes are based upon the symptoms that are exhibited with each type of depression.  Some of the main subtypes of depression include:

1. Mono-polar depression (also known as dysthymic disorder)
This type of depression consists only of depressive symptoms.  In mild cases of mono-polar depression there is no interference with an individual's ability to work or their ability to participate in social activities.  (These minor cases are known as "dysthymic disorder.")  However, in more severe cases of mono-polar depression, these areas can be affected. 

2. Bipolar disorder (also known as manic-depressive disease or cyclothymic disorder)
A person with bipolar disorder has periods of depression that alternate with periods of elevated mood level.  The periods of depression are known as the depressive phase while the periods of elevated mood level are known as the manic phase.  While a person is in the manic phase they show symptoms of increased mental and physical activity.  They also tend to sleep poorly and have problems concentrating whenever they are in the manic phase.  Sometimes a person may only have a mild form of bipolar disorder.  In such cases, this mild form of bipolar disorder is known as "cyclthymic disorder."

3. Manic disorder
This disorder is actually believed to be the same as bipolar disorder, but the depressive state simply has not occurred yet.  Manic depression is characterized by an abnormally elevated mood.  This mood is accompanied by unrealistic optimism, lack of sleep, and hyperactive behavior. 

4. Depression caused by physical disease
Sometimes a physical disease such as hypertension, Parkinson's disease, heart disease, stroke, and Cushing's syndrome can cause the symptoms of depression.  Diseases such as these are actually the most common cause of depression.  However, this type of depression can also be triggered by a lengthy illness such as the flu.  Another disease that often contributes to depression is hypothyroidism, wherein a person lacks thyroid hormones and thus has a slowed metabolism.

5. Postnatal Depression
Oftentimes, women go through a period of depression after giving birth to a baby.  This is due to the fact that the birthing process is both physically and mentally exhausting.  Therefore, this process can actually drain the body of important nutrients.  This lack of nutrients can in turn lead to depressive symptoms.

6. Seasonal Affective Disorder
During cold, dark times of the year a person may become depressed.  Then when it becomes warm and light outside again, this depression may then go away.  This is because light stimulates brain activity while a lack of light may lead to depression.

Depression news on the Web

A Portrait of Depression
Opening with a sobering quotation from Andrew Solomon ’s 1998 confession of suicidal depression in The New Yorker , “Helen” dives into this painful mental illness with sensitivity and grace.

Tropical depression forms over the Bahamas
The third tropical depression of the 2010 hurricane season has formed in the southeast Bahamas, the National Hurricane Center says.

Link Between Depression, Cholesterol May Differ by Gender
Title: Link Between Depression, Cholesterol May Differ by Gender Category: Health News Created: 7/26/2010 2:10:00 PM Last Editorial Review: 7/27/2010

Depression, bipolar support group available
A Fergus Falls, Minn., man who climbed out of depression through a support group wants others to reap the benefits. Dave Offner, who has bipolar disorder, has created a chapter of the Depression and Bipolar Support Alliance for the Breckenridge and Wahpeton area.

Economists: Bailouts Averted 'Depression 2.0'
The U.S. response to the financial crisis probably prevented a depression, slowed a decline in gross domestic product and saved about 8.5 million jobs, economists Alan Blinder and Mark Zandi said.

So Did We Really Avert The Second Great Depression?
The old adage about it being a recession if your neighbor is out of work and a depression if you are out of work is, I think, particularly apt these days. The jobless are in agony, and the large businesses are laughing all the way to the bank.

People With Severe Depression 'Find It Harder To Judge Facial Expressions'
New research shows people with severe depression find it harder to interpret facial expressions than healthy people - particularly expressions of disgust. The study, published in the August issue of the British Journal of Psychiatry, was carried out by researchers from the University of Otago in New Zealand. Researchers Katie Douglas and Professor Richard Porter asked 68 people who had been ...

Depression-era work scheme may be copied using jobless young Scots
A WORK scheme based on an initiative by US president Franklin D Roosevelt to keep young people occupied during the Great Depression could be introduced in Scotland.

Differences in depression between men and women
The symptoms of depression are universal. But when it comes to how people experience and cope with those symptoms, gender patterns often emerge. Twice as many women as men suffer depression each year, and women are more likely to seek treatment for it.

The Blues Can Break Your Heart
Depression--a whole-body affair