What is anosognosia and how does it affect treatment?

Anosognosia refers to a situation in which the person does not recognize that he or she has a neurological or mental health problem. For example, certain types of strokes leave people unaware that one side of the body has lost feeling or muscle function. This can lead to a higher risk of injury. People with schizophrenia have an altered reality and may not believe they need medication.