A person may have a disability and not be handicapped. Persons with disabilities represent more than 15 percent of the Canadian population.
Mental illness is synonymous with Mental retardation .
Persons with cerebral palsy usually have an intellectual impairment. Intellectual impairment is curable. Paraplegia is an impairment caused by damage to the spinal cord. One cannot provide services to a deaf client without the aid of a sign language interpreter. Deaf persons can use a telephone to communicate.