What is intellectual disability

summary

In fact, mental retardation is a kind of mental retardation. It is usually caused by a serious impact on the brain or incomplete brain development, resulting in mental retardation. Let's popularize what is called mental retardation.

What is intellectual disability

First: mental retardation (MR), also known as mental retardation, generally refers to the continuous impairment of cognitive activity and the whole mental activity caused by organic damage to the brain or incomplete brain development.

Second: due to genetic variation, infection, poisoning, head injury, brain malformation or endocrine abnormalities and other harmful factors, the brain of fetus or infant can not develop normally or is not fully developed, so that the development of intellectual activity stays in a relatively low stage, which is called mental retardation. Because the brain is damaged by physical, chemical or virus, bacteria and other factors, the original normal intelligence is damaged, resulting in defects, it is called dementia.

Third: genetic factors: chromosomal abnormalities, such as congenital stupidity, account for 5% - 10% of mentally retarded children. Gene mutations such as congenital metabolic disorders belong to this category. The risk factors include: pregnant women, drug abuse, lead exposure, radiation, lead poisoning, serious physical and chemical damage.

matters needing attention

Mental retardation generally occurs among children, so once it is found that some children's learning ability is relatively slow, or it is difficult to understand the learning, it is better to do an intelligence test for the children in advance, and the children with mental retardation should receive timely treatment.