When.com Web Search

  1. Ads

    related to: history of depression unpredictable moods

Search results

  1. Results From The WOW.Com Content Network
  2. History of depression - Wikipedia

    en.wikipedia.org/wiki/History_of_depression

    In the mid-20th century, researchers theorized that depression was caused by a chemical imbalance in neurotransmitters in the brain, a theory based on observations made in the 1950s of the effects of reserpine and isoniazid in altering monoamine neurotransmitter levels and affecting depressive symptoms. [32]

  3. Depression (mood) - Wikipedia

    en.wikipedia.org/wiki/Depression_(mood)

    Emotions. v. t. e. Depression is a mental state of low mood and aversion to activity. [3] It affects about 3.5% of the global population, or about 280 million people of all ages (as of 2020). [4] Depression affects a person's thoughts, behavior, feelings, and sense of well-being. [5]

  4. Mood swing - Wikipedia

    en.wikipedia.org/wiki/Mood_swing

    Mood swings in Premenstrual symptoms (PMS): Episodically at mild to severe degree in the menses period, occur gradually or rapidly, [ 49 ] start 7 days before and decrease at the onset of menses. [ 50 ] Characterized by angry outbursts, depression, anxiety, confusion, irritability or social withdrawal.

  5. Evolutionary approaches to depression - Wikipedia

    en.wikipedia.org/wiki/Evolutionary_approaches_to...

    Evolutionary approaches to depression. Evolutionary approaches to depression are attempts by evolutionary psychologists to use the theory of evolution to shed light on the problem of mood disorders within the perspective of evolutionary psychiatry. Depression is generally thought of as dysfunction or a mental disorder, but its prevalence does ...

  6. Biology of depression - Wikipedia

    en.wikipedia.org/wiki/Biology_of_depression

    Biology of depression. Scientific studies have found that different brain areas show altered activity in humans with major depressive disorder (MDD), [ 1 ] and this has encouraged advocates of various theories that seek to identify a biochemical origin of the disease, as opposed to theories that emphasize psychological or situational causes.

  7. Mood (psychology) - Wikipedia

    en.wikipedia.org/wiki/Mood_(psychology)

    e. In psychology, a mood is an affective state. In contrast to emotions or feelings, moods are less specific, less intense and less likely to be provoked or instantiated by a particular stimulus or event. Moods are typically described as having either a positive or negative valence. In other words, people usually talk about being in a good mood ...