Primary depression.
Depression caused by no obvious external factor.
Serious and persistent form of depression believed due to a complex interrelationship of biochemical, genetic, and psychological factors and frequently not traceable to a specific extrinsic event (e.g., death of a spouse).
Depression that occurs without an apparent precipitating cause. Melancholia.
An erstwhile nomenclature for a variety of depression, characterized by gloom, desolation, and an ebbing interest in existence, was born of an individual’s intrinsic biological factors. This is distinct from “reactive depression,” a state believed to emerge from taxing emotional scenarios or distressing life epochs. Nonetheless, it is not uncommon for depression to wield elements from both these categories, concocting a complex emotional tapestry.