Intellectual disability is a condition of the brain. People affected by it may have cognitive abilities below the average person of their age group; because of this, they often have trouble with getting through daily life, without the help of others. The condition is also known as intellectual developmental disability, or general learning disability.[1] It used to be called mental retardation but this term is not used very much any more.[2][3] It is classified as a learning disability.[4] Intellectual disability becomes apparent in childhood. There are a number of conditions that show as intelectual disability.
There are two main forms: In one form, the disability occurs together with other healh issues (or syndromes), in the other it occurs on its own.
The term general learning disability is now used in the UK instead of terms such as mental handicap or mental retardation. The degree of disability can vary significantly, being classified as mild, moderate, severe or profound.
Decades-long quest by disabilities advocates finally persuades state, federal governments to end official use of 'retarded'.