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The biology of depression is the attempt to identify a biochemical origin of depression, as opposed to theories that emphasize psychological or situational causes. Scientific studies have found that different brain areas show altered activity in humans with major depressive disorder (MDD) . [ 1 ]
Although not as strong as a risk factor as social adversity, [26] illness is often associated with depression. Compared to the healthy portion of the US population, those experiencing illness are 5-10 times more likely to experience depression or depression-like symptoms.
No labs are diagnostic of a depressive episode, [3] but some labs can help rule out general medical conditions that may mimic the symptoms of a depressive episode. Healthcare providers may order blood work, including routine blood chemistry, CBC with differential, thyroid function studies, and Vitamin B12 levels, before making a diagnosis. [24]
Central nervous system (CNS) depression is a physiological state that can result in a decreased rate of breathing, decreased heart rate, and loss of consciousness, possibly leading to coma or death. It is the result of inhibited or suppressed brain activity .
This article needs to be updated. The reason given is: Many outdated sources and information (older than five years). Please help update this article to reflect recent events or newly available information. (July 2024) Medical condition Major depressive disorder Other names Clinical depression, major depression, unipolar depression, unipolar disorder, recurrent depression Sorrowing Old Man (At ...
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Depression can have multiple, sometimes overlapping, origins. Depression can be a symptom of some mood disorders, some of which are also commonly called depression, such as major depressive disorder, bipolar disorder and dysthymia. [7] Additionally, depression can be a normal temporary reaction to life events, such as the loss of a loved one.
Feelings of anxiety and depression can affect us all. If you need help with your mental health, you can refer yourself, or your GP can refer you. Let us help you get your feet back on the ground ...