When.com Web Search

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)

   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. Major depressive disorder - Wikipedia

   en.wikipedia.org/wiki/Major_depressive_disorder

   Major depressive disorder (MDD), also known as clinical depression, is a mental disorder [ 9 ] characterized by at least two weeks of pervasive low mood, low self-esteem, and loss of interest or pleasure in normally enjoyable activities. Introduced by a group of US clinicians in the mid-1970s, [ 10 ] the term was adopted by the American ...

5. 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.

6. Mood disorder - Wikipedia

   en.wikipedia.org/wiki/Mood_disorder

   Family history, previous diagnosis of a mood disorder, trauma, stress or major life changes in the case of depression, physical illness or use of certain medications. Depression has been linked to major diseases such as cancer, diabetes, Parkinson's disease and heart disease, Brain structure and function in the case of bipolar disorder. [1 ...

7. Great Depression - Wikipedia

   en.wikipedia.org/wiki/Great_Depression

   The Great Depression (1929–1939) was a severe global economic downturn that affected many countries across the world. It became evident after a sharp decline in stock prices in the United States, the largest economy in the world at the time, leading to a period of economic depression. [ 1 ] The economic contagion began around September 1929 ...