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Late-life depression is often underdiagnosed, which is due to numerous reasons, including that depressed mood is commonly not as prominent as other somatic and psychotic symptoms such as loss of appetite, disruptions in sleep, lack of energy or anergia, fatigue, and loss of interest and enjoyment in normal life activities.
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 ]
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.
Lethargy is a state of tiredness, sleepiness, weariness, fatigue, sluggishness, or lack of energy. It can be accompanied by depression , decreased motivation, or apathy . Lethargy can be a normal response to inadequate sleep, overexertion, overworking, stress, lack of exercise, improper nutrition, drug abuse, boredom , or a symptom of an ...
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 The reason given is: Many outdated sources and information (older than five years).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 ...
Low levels of positive affect in the Tripartite Model characterize depression. [13] [18] Signs of low positive affect include fatigue, loneliness, sadness, and lethargy. [13] Positive affect is important because it is a construct used in order to differentiate depression from anxiety. [1] [20]
Anemia can produce symptoms like fatigue, weakness, loss of appetite, headaches, and pale or yellowish skin. Less Body Hair We already mentioned how testosterone helps you grow facial and body ...
The onset of major depressive episodes or MDD often occurs in people in their mid-20s and less often in those over 65. The prevalence of depressive symptoms in the elderly is around 1–2%. [35] Elderly persons in nursing homes may have increased rates, up to 15–25%. [35]
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