# Major Depressive Disorder

**IRI:** https://folio.openlegalstandard.org/RBBrn06f0b4D6yGdMcyOAOL

## Labels

**Preferred Label:** Clinical Depression

**Alternative Labels:**

- Depressive Disorder
- Severe Depression
- Unipolar Depression

## Definition

Major Depressive Disorder (MDD) is a mental health condition characterized by persistent and intense feelings of sadness, hopelessness, and loss of interest or pleasure in nearly all activities. These symptoms significantly impair daily functioning and can be accompanied by changes in sleep, appetite, energy levels, concentration, and self-worth.

## Sub Class Of

- https://folio.openlegalstandard.org/R8ly82UzT3qEXtZR0pcZq8L

**Deprecated:** False