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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 ]
Risk factors for mental illness include psychological trauma, adverse childhood experiences, genetic predisposition, and personality traits. [7] [8] Correlations between mental disorders and substance use are also found to have a two way relationship, in that substance use can lead to the development of mental disorders and having mental disorders can lead to substance use/abuse.
Although causal direction has not been established, involvement in any sex or drug use is cause for concern. [26] Children who develop major depression are more likely to have a family history of the disorder (often a parent who experienced depression at an early age) than patients with adolescent- or adult-onset depression.
One reason depression is thought to be a pathology is that it causes so much psychic pain and distress. However, physical pain is also very distressful, yet it has an evolved function: to inform the organism that it is being damaged, to motivate it to withdraw from the source of damage, and to learn to avoid such damage-causing circumstances in the future.
The main causes of constipation are diet, lack of sufficient amounts of water, stress, not enough exercise, and inconsistent bathroom routines. [18] Enuresis: The cause of enuresis is thought to be unclear and usually is attributed to many factors. Genetic – there is a genetic component within enuresis and it tends to run in families.
Child psychopathology can cause separation anxiety from parents, [14] attention deficit disorders in children, [15] sleep disorders in children, [16] aggression with both peers and adults, [17] night terrors, [18] extreme anxiety, [19] anti social behavior, [20] depression symptoms, [21] aloof attitude, [22] sensitive emotions, [23] and ...
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]
Although the exact origin of depression is unclear, it is believed to involve biological, psychological, and social aspects. [2] Socioeconomic status, life experience, genetics, and personality traits are believed to be factors in the development of depression and may represent an increased risk of developing a major depressive episode.
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