The DSM-5, text revision (DSM-5-TR) added a new category within the depressive disorders and bipolar disorders chapters—it's called unspecified mood disorder. With an unspecified mood disorder, a ...

Tic disorders are conditions featuring sudden, non-rhythmic movements or vocalizations. A formal tic disorder diagnosis is determined by tic frequency, duration, and type. Tics are non-rhythmic ...

The theory of types of borderline personality disorder (BPD) is controversial. There is some debate over whether there are various types and what those types may be. BPD is a mental health condition ...

Lymphoproliferative disorders are a group of diseases that cause an uncontrolled production of lymphocytes, a type of white blood cell. Examples include non-Hodgkin’s lymphoma and certain leukemias.

Bipolar disorder is a long-term mood disorder characterized by major fluctuations in mood — both high and low — that can impact daily functioning and behavior. Although bipolar disorder is a chronic ...

Hyperarousal plays an important role in mental disorders. It influences the severity of insomnia, depression, anxiety, post-traumatic stress disorder (PTSD), and ADHD. Yet it is striking that ...

People with Bipolar I disorder have full-blown manic attacks and deep, paralyzing depressions. A World Health Organization survey found the prevalence rate of bipolar I disorder to be 0.6 percent.

Noticing changes in your sleep patterns? It could be a sleep disorder. Learn about sleep disorder symptoms and treatments.

Systemic lupus erythematosus (SLE) can have links with sleep disorders such as insomnia and obstructive sleep apnea. Lupus can also make you wake up more in the night. If lupus is affecting the ...