DISABILITY VERSUS HANDICAP
A Disability is a condition at birth or acquired at some time later in life. That may be caused by genetics, accident, trauma, or disease which may limit a person's mobility, hearing, vision, speech or mental function. Some people with disabilities have one or more disabilities.
A Handicap is a physical or attitudinal constraint that is imposed upon a person, regardless of whether that person has a disability. Webster's Ninth New Collegiate Dictionary defines handicap as to put at a disadvantage.