Social Security Administration. The Social Security Administration assigns social security numbers; administers the retirement, survivors, and disability insurance programs known as Social Security; and administers the Supplemental Security Income program for the aged, blind, and disabled. SSA.
Prosopagnosia is a neurological disorder characterized by the inability to recognize faces. Prosopagnosia is also known as face blindness or facial agnosia.
Strokes are one disorder that may also cause numbness or paralysis of the face. A stroke occurs when a blood vessel ruptures and causes a lack of oxygen to the brain. This lack of oxygen can affect one side of the face.