Depression may refer to:
Mental health
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Depression (mood)
Depression is a mental state of low Mood (psychology), mood and aversion to activity. It affects about 3.5% of the global population, or about 280 million people worldwide, as of 2020. Depression affects a person's thoughts, behavior, feelin ...
, a state of low mood and aversion to activity
* Mood disorders characterized by depression are commonly referred to as simply ''depression'', including:
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Major depressive disorder, also known as ''clinical depression''
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Bipolar disorder
Bipolar disorder (BD), previously known as manic depression, is a mental disorder characterized by periods of Depression (mood), depression and periods of abnormally elevated Mood (psychology), mood that each last from days to weeks, and in ...
, also known as ''manic depression''
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Dysthymia, also known as ''persistent depressive disorder''
Economics
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Economic depression, a sustained, long-term downturn in economic activity in one or more economies
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Great Depression
The Great Depression was a severe global economic downturn from 1929 to 1939. The period was characterized by high rates of unemployment and poverty, drastic reductions in industrial production and international trade, and widespread bank and ...
, a severe economic depression during the 1930s, commonly referred to as simply ''the Depression''
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Long Depression, an economic depression during 1873–96, known at the time as the ''Great Depression''
Biology
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Depression (kinesiology), an anatomical term of motion, refers to downward movement, the opposite of elevation
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Depression (physiology), a reduction in a biological variable or the function of an organ
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Central nervous system depression, physiological depression of the central nervous system that can result in loss of consciousness
Earth science
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Depression (geology), a landform sunken or depressed below the surrounding area
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Depression (weather), an area of low atmospheric pressure characterized by rain and unstable weather
{{Disambiguation