A disability is a physical or mental problem that makes it difficult or impossible for a person to walk, see, hear, speak, learn, or do other important things. Some disabilities are permanent, or last forever. Others are temporary, or last for only a short time. A disability can be something a person was born with. Or it can be the result of an illness or an accident.In the field of early childhood education,this is a restriction or loss of ability due to an impairment in performing an activity in a manner or range considered normal for a human being of that developmental stage.