Fragile X, a defect in the chromosome that determines sex, is the most common inherited cause of mental retardation.
Mental retardation may be caused by an inherited abnormality of the genes, such as fragile X syndrome.
Overstudy does not cause mental retardation.
TThere are quite high as it comes in different types of mental retardation.
The Answer is: an inherited disease due to faulty metabolism of phenylalanine, characterized by phenylketones in the urine and usually first noted by signs of mental retardation in infancy.
literature review on mental retardation with reference
Exposure to lead can also cause mental retardation.
Mental retardation has different levels. There is Mild intellectual disability; moderate intellectual disability; severe intellectual disability; and Profound intellectual disability.https://www.floridahospital.com/mental-retardation-mr/symptoms-and-signs-mental-retardation
The two conditions are not at all related. Autism does not cause mental retardation.
because some ppl are born with birth defects like mental retardation
About one-third of individuals with CP have moderate-to-severe mental retardation, one-third have mild mental retardation, and one-third have normal intelligence.
Mental retardation could be the result of a number of things. These include an accident that resulted in physical damage to the baby's brain despite the cushioning effect of the fluid in the womb, chemical substances exchanged between the mother and the embryo through the placenta. Sometimes mental retardation is inherited from one or both parents through the genes or genetic damage occurs as cells divide in the early stages of pregnancy.