Excessive anxiety in the absence of true danger.
People who experience anxiety disorders feel anxious, tense, and worried about the future.
By continually arousing the autonomic nervous system, chronic anxiety also causes bodily symptoms such as sweating, dry mouth, rapid pulse, shallow breathing, and increased muscular tension
A diffuse state of constant anxiety not associated with any specific object or event
Constantly anxious and worry incessantly about even minor matters
An anxiety disorder marked by fear of being in situations from which escape may be difficult or impossible
People who experience agoraphobia avoid going into open spaces or to places that might have crowds
Trauma and stressor-related disorders
Adjustment disorder
People have difficulty adjusting to stressors.
Biophysical factors play a role in the etiology of depression.
Studies of twins, of families, and of adoptive children support the notion that depression as a genetic compete
Studies of brain function have suggested that certain neural structures may be involved in mood disorders
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Aaron beck has hypothesized that a psychological factor associated with depression is how people think of themselves
From Beck's perspective, people are likely to develop depression blame misfortunes on personal defects and see positive occurrences as the result of luck
A second cognitive theory of depression is based on learned helplessness
People come to see themselves as unable to have any effects on events in their lives
Across multiple countries and contexts, twice as many women as men as diagnosed with depression
One theory is that women respond to stressful events by internalizing their feelings, which leads to depression and anxiety, whereas men externalize their feelings with alcohol, drugs, and violence,(Holden, 2005)
Bipolar disorder are much less common that depression
Bipolar disorders are equally prevalent in women and men
Bipolar disorder emerge most commonly during late adolescence or early adulthood
There is a very strong genetic component to bipolar disorder
Genetic research also suggests, however, that the hereditary nature of the bipolar disorder is complex and not linked to only one gene.