How many people are currently affected by depression was highlighted in a recent study (2021) in JAMA Network Open, a public journal of the American Medical Association. According to the study, more than half (52%) of all Covid patients met criteria for a depressive episode after 4 months.
Depression can occur as a consequence or concomitant of various physical illnesses, as well as in the context of other mental disorders, such as addictions or anxiety.
Depressions have very different courses. A distinction is made between the first episode of depression and recurrent, chronic and therapy-resistant forms of the disease.