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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 ]
A depressogen is a substance that causes or can cause depression, usually as a side effect. [1] They are the functional opposites of antidepressants. [2]Examples of drugs commonly associated with depressogenic effects include ethanol, some anticonvulsants such as the barbiturates (e.g. phenobarbital), benzodiazepines (e.g. diazepam), vigabatrin, and topiramate, corticosteroids like ...
According to a study published in the Journal of the American Medical Association that was based on a paper from the Institute of Medicine, stress is a major factor that causes the onset of ...
Theories of a proposed stress–illness link suggest that both acute and chronic stress can cause illness, and studies have found such a link. [58] According to these theories, both kinds of stress can lead to changes in behavior and in physiology. Behavioral changes can involve smoking and eating habits and physical activity.
Causes: Family history, previous diagnosis of a mood disorder, trauma, stress or major life changes in the case of depression, physical illness or use of certain medications. Depression has been linked to major diseases such as cancer, diabetes, Parkinson's disease and heart disease, Brain structure and function in the case of bipolar disorder. [1]
This article originally appeared on The Columbus Dispatch: Seasonal depression causes, symptoms, treatments and more. Show comments. Advertisement. Advertisement. Holiday Shopping Guides.
Evidence for the monoamine theory comes from multiple areas. First, acute depletion of tryptophan—a necessary precursor of serotonin and a monoamine—can cause depression in those in remission or relatives of people who are depressed, suggesting that decreased serotonergic neurotransmission is important in depression. [64]
Depression affects around 14.8 million adults in the U.S. That?s around 7 percent of the entire population aged 18 and over.
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