What are delusions versus hallucinations?

Delusions and hallucinations have different types of symptoms, says Jeffrey Lieberman, MD, director, New York State Psychiatric Institute. He discusses how they differ.

Desmoid tumors are noncancerous and do not metastasize, but they can invade nearby tissues and structures.

Suicide could affect anyone, even those without mental illness. Learn to recognize when someone might be at risk.

Learn why hypertension in older adults is linked with stroke and dementia.

What is "frozen shoulder" exactly and why are some people more at risk than others?