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TThere are quite high as it comes in different types of mental retardation.
Overstudy does not cause mental retardation.
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.
Stress and biological predisposition.
Genetics and environmental
In about 35% of cases, the cause of mental retardation cannot be found.
yes