Why Borderline Personality Disorder is Considered the Most “Difficult” to Treat. Borderline personality disorder (BPD) is defined by the National Institute of Health (NIH) as a serious mental disorder marked by a pattern of ongoing instability in moods, behavior, self-image, and functioning.

What are the most severe mental illnesses?

By all accounts, serious mental illnesses include “schizophrenia-spectrum disorders,” “severe bipolar disorder,” and “severe major depression” as specifically and narrowly defined in DSM. People with those disorders comprise the bulk of those with serious mental illness.

Which mental illness is easiest to treat?

What are the easiest psychological disorders to eliminate? Specific phobias. They involve intense, irrational fear and avoidance of some object or situation, such as spiders or heights or blood.

Which country has the most mental illness?

The United States, Colombia, the Netherlands and Ukraine tended to have higher prevalence estimates across most classes of disorder, while Nigeria, Shanghai and Italy were consistently low, and prevalence was lower in Asian countries in general.