A recent study of Swedish twins has found an unusual correlation between the level of estrogen in amniotic fluid and a child's development of anorexia. The study found that, among fraternal twins (two eggs, one male and one female), the boys were ten times more likely to develop anorexia than boys who were identical twins.

"Estrogen would be present in the amniotic fluid that bathes babies in the womb and would be swallowed by both the male and female twin. Estrogen is needed in development of females but it is possible that too much affects the structure of the brain."

The results support other studies which have found that brain activity is very different between anorexics and non-anorexics.

There is also a strong relationship between brain activity and development and learning disorders. Read more about children with learning disabilities and find boarding schools for learning disabilities at LearningDisabilitiesInfo.com.