This is not fully known.
There is Reactive Depression, which is a normal response to bad events in life.
But there are many other types of depression that occur with no apparent causes. Some are probably due to internal biochemical/neurological conditions, others may have nonobvious subtle environmental causes, etc., but the exact mechanisms of these are still not known.
The Great Depression
Depression is capitalized in phrases such as The Great Depression, but the medical condition and the scientific are not.
what is an economic depression?
The grea depression
is a depression
the great depression was characterized by
....opening?
The Great Depression
Uni- one. unipolar depression - this is form of depression without maniacal episode
Ambiguous Question: Specify--- Psychological Depression Geographical Depression Economic Depression
Depression can very well cause delusions. But when this happens, it no longer is depression. If your seeing things out of the ordinary your depression could have turned into something much more serious like, physcotic depression.
1. How do you use major depression in a sentence? 2. An example of a major depression is the Great Depression of the 20th Century in the USA.