may be described as feeling sad, blue, unhappy, miserable, or down in the dumps. Most of us feel this way at one time or another for short periods.
True clinical depression is a mood disorder in which feelings of sadness, loss, anger, or frustration interfere with everyday life for weeks or longer.
Depression - major; Unipolar depression; Major depressive disorder
Causes, incidence, and risk factors
The exact cause of depression is not known. Many researchers believe it is caused by chemical changes in the brain. This may be due to a problem with your genes, or triggered by certain stressful events. More likely, it's a combination of both.
Some types of depression run in families. But depression can also occur if you have no family history of the illness. Anyone can develop depression, even kids.
The following may play a role in depression:
Alcohol or drug abuse
Certain medical conditi...
What is the difference between dysthymia and major depression? The simple answer is severity, but let me expand on this further. Technically, dysthymia is a pervasive "low level" depression that lasts a long time – often a few years. "Major Depression" is a discrete episode of severe depression. When it is gone, the patient is in "remission,” and feels completely normal. "Recurrent major depression" comprises discrete periods of major depression that come and go, while "major depression in partial remission" is a severe discrete episode that never completely gets better. How does that feel any differently than dysthymia, you might ask? It doesn't. These terms are descriptions, not different diseases. The problem with these terms is that the medications are pretty much the same: antidepressants. Ostensibly, the diagnosis is supposed to have predictive value. For example, there are high rates of relapse in partially treated depression, while dysthymi...
Studies have shown that stroke often leads to depression, but the evidence from those studies has been mixed as to whether depression could lead to stroke. Now, according to a study published in the March 4, 2008, issue of Neurology®, the medical journal of the American Academy of Neurology, psychological distress, but not depression, may increase the risk of stroke. “Stroke is among the leading causes of long-term disability and death worldwide... Understanding the mechanisms by which overall emotional health may increase stroke risk may inform stroke prevention and help identify those at increased stroke risk.” study author Paul Surtees, PhD Researchers studied 20,627 people who had never suffered a stroke for an average of 8.5 years. Participants answered questions concerning their psychological distress, based on a scale measuring well-being and their history of major depressive disorder. During the course of the study... 595 participants suffered a st...
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