"Night mares" can cause "Dyslexia"

We all know that young children can get "Dyslexia", and recent researches states that "Night mares" in young children could be the major reason for this. And this is basically a learning disability , a condition in which the brain fails to show difference between the written and spoken language. This is a result of neurological difference and not due to intellectual disability. And night mares can cause this neurological difference. And there is no medicinal cure for this , its curable only by practical treatment.