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Depression is a significant mental illness with physiological and psychological consequences, including sluggishness, diminished interest and pleasure, and disturbances in sleep and appetite. [1] It is predicted that by the year 2030, depression will be the number one cause of disability in the United States and other high-income countries. [2]
Such illness responses include lethargy, depression, anxiety, malaise, loss of appetite, [3] [4] sleepiness, [5] hyperalgesia, [6] reduction in grooming [1] [7] and failure to concentrate. [8] Sickness behavior is a motivational state that reorganizes the organism's priorities to cope with infectious pathogens.
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 The reason given is: Many outdated sources and information (older than five years).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 Specialty Psychiatry ...
Based largely on the degree of overlap in symptoms major depression, sickness behavior, and starvation depression share, the argument is that sickness behavior likely evolved first due to its prevalence across animal species and the role infection plays as a major fitness threat. [14]
The nervous patients of yesteryear are the depressives of today. That is the bad news.... There is a deeper illness that drives depression and the symptoms of mood. We can call this deeper illness something else, or invent a neologism, but we need to get the discussion off depression and onto this deeper disorder in the brain and body.
Depression is a treatable illness. Treatments for a major depressive episode may be provided by mental health specialists (e.g. psychologists, psychiatrists, social workers, counselors), mental health centers or organizations, hospitals, outpatient clinics, social service agencies, private clinics, peer support groups, clergy, and employee ...