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Diurnal mood variation or morning depression is a prominent [1] depression symptom characterized by gradual mood improvement through the day, reaching its peak sometime after twilight. While the main form of diurnal mood variation presents itself as described, a reversed form, with a worsening of mood towards the evening, also exists. [ 2 ]
Hypersomnia, or oversleeping, can also happen, [20] as well as day-night rhythm disturbances, such as diurnal mood variation. [21] Some antidepressants may also cause insomnia due to their stimulating effect. [22] In severe cases, depressed people may have psychotic symptoms.
People with MDD sometimes show diurnal and seasonal variation of symptom severity, even in non-seasonal depression. Diurnal mood improvement was associated with activity of dorsal neural networks. Increased mean core temperature was also observed. One hypothesis proposed that depression was a result of a phase shift. [30]
Symptoms of Bipolar Disorder. The single most telling symptom of bipolar disorder is the episodic oscillation between high and low mood states — characteristic shifts between depression, normal ...
And also positive diurnal variation mood (bad mood in the morning, good mood in the evening), [73] sensitivity to negative stimulation and mixed symptoms in some people, etc. [74] [75] Mood swings in post-traumatic stress disorder (PTSD): Mood changes erratically [76] with episodic mood swings rising in the period of recovery process.
Unipolar mania is a form of bipolar disorder whereby individuals only experience manic episodes without depression. [1] Depression is often characterised by a persistent low mood, decreased energy and thoughts of suicide. [2] What is seen as its counterpart, mania, can be characterized by racing thoughts, less need for sleep and psychomotor ...
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