Dopamine brings on a surge of pleasure, but too much dopamine in a synapse can ultimately lead to mood disorders and addiction. A recent preclinical study published in The FASEB Journal suggests that methamphetamine boosts ...
Nov 25, 2025
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Higher levels of greenness are associated with lower risks of hospital admissions for mental disorders, finds an analysis of data from seven countries over two decades, published in The BMJ's climate issue.
Nov 5, 2025
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Scrolling on your phone before bed may not be as bad for your sleep as we once thought. New research from Toronto Metropolitan University (TMU) and the Université Laval suggests nightly screen use does not contribute to ...
Nov 5, 2025
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Research led by the Karolinska Institutet reports that offspring of parents with mental disorders face increased mortality, with the highest risks for unnatural deaths and when both parents had diagnoses.
A new multi-institutional study, led by University Hospitals Connor Whole Health, found that adults with newly diagnosed low back pain with or without sciatica who initially received spinal manipulative therapy administered ...
Oct 3, 2025
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A study from Taipei Medical University reveals how disruptions in the body's internal clock (caused by modern life and certain mood medications) can interfere with women's hormonal health and potentially worsen mood disorders. ...
Sep 18, 2025
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Researchers at the University of Calgary studying a lethal lung disease called pulmonary fibrosis have found that neurons known to help detect pain are also critical for reducing harmful lung inflammation that leads to the ...
Sep 16, 2025
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Immune cells released from bone marrow in the skull in response to chronic stress and adversity could play a key role in symptoms of depression and anxiety, say researchers.
Sep 1, 2025
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When I ask a lecture theater full of students how they would feel if they could never listen to a piece of music again, most are horrified. Many have been plugged into their headphones until the moment the class begins. But ...
Aug 22, 2025
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The findings of a new brain study could change the way doctors treat mood disorders involving psychosis in patients. The brain imaging study found that changes in brain dopamine are linked to symptoms of psychosis, no matter ...
Aug 14, 2025
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Mood disorder is the term designating a group of diagnoses in the Diagnostic and Statistical Manual of Mental Disorders (DSM IV TR) classification system where a disturbance in the person's mood is hypothesized to be the main underlying feature. The classification is known as mood (affective) disorders in ICD 10.
English psychiatrist Henry Maudsley proposed an overarching category of affective disorder. The term was then replaced by mood disorder, as the latter term refers to the underlying or longitudinal emotional state, whereas the former refers to the external expression observed by others.
Two groups of mood disorders are broadly recognized; the division is based on whether the person has ever had a manic or hypomanic episode. Thus, there are depressive disorders, of which the best-known and most researched is major depressive disorder (MDD) commonly called clinical depression or major depression, and bipolar disorder (BD), formerly known as manic depression and characterized by intermittent episodes of mania or hypomania, usually interlaced with depressive episodes.
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