The inability to carry out a social, occupational or other activity that could normally be done by a person without such a handicap. The handicap may be partial or complete, physical or mental, and may result from disease, injury or inherited disorder. The extent of the handicap is measured against the normal function of those of the same age, sex etc. Considerable government and voluntary community efforts have been made to lessen the day-to-day difficulties of living faced by people disabled by such a handicap. Increasingly, public buildings, houses and vehicles are being modified to ensure that these are user-friendly to such individuals. The health and social-work professions also contribute to reducing the impact of disability on affected individuals.