Depression is the most widespread psychological malady there is. Just in the United States, its believed that twenty percent of the adult population has depression. Putting that percentage into a number comes to roughly sixty million people in the US, most of whom dont get a depression diagnosis or any form of treatment. With such a high affliction rate, considering the causes of depression is an obviously worthwhile endeavor.
Understanding Depression::
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There are essentially two reasons for depression: biological factors and environmental interactive factors. A combination of biological and environmental factors is obviously another possibility. When discussing biological causes of depression, essentially whats being referenced is a chemical imbalance in the brain. There are different chemicals at work in the brain, operating in complex functions. Theres a correlation between low levels of particular chemicals within the brain and emotional and psychological dysfunctions, depression included.
One of the chemicals believed to have a primary function in the regulation of mood is serotonin. Low serotonin levels have been associated not only with depression but with obsessive-compulsive disorder, anxiety, sleep difficulties, and anger and aggression abnormalities. The discovery of serotonin in the role of mood was key in the development of the selective serotonin reuptake inhibitor class of drugs, also known as SSRIs. Of the SSRIs, and there are now a number available, Prozac was the first on the market and is still the most well known. Prozac in fact is one of the most widely prescribed pharmaceuticals in history, a testament to the prevalence of depression and emotional malaise.
The other side of the coin in the thinking on depression causes is that depression is purely a function of environmental interactive factors. That is to say, depression isnt caused by any biological imbalance at all but instead occurs because of how a person responds to their environment. As one example, an individual may consider the break up of a relationship as a significant loss and fall into a depression as a result. From an environmental interactive position the thinking would be that this particular depression isnt due to some brain dysfunction but is instead caused by the significance this person attaches to a life event: a relationship break up in this particular case. Using this sort of explanation, all forms of depression can be explained by a persons perspective as opposed to any biological factors.
Reach Out! - Depression - Types, Causes and Symptoms::
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So is depression caused by biology or by how a person perceives their environment? The answer is likely a combination of both. The effectiveness of drugs like Prozac demonstrate that there is a biological element to depression, but theres certainly also issues of perspective at work as well.
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What Causes Depression