Although they cannot speak in words, cannot wrap their arms around me, hugging me tight, or wipe the tears I cry, they have an inner force and passion that surpasses their developmental limitations and age.

CNN: Genetic disease: Mother hopes for cure for dying children

But given the fact that the age of each parent contributes to the risk of developmental problems in the child, it seems better to not postpone having a child till very late, if at all possible.

FORBES: Parental Age, Especially The Father's, Is Linked To Genetic Mutations In The Child

Work by other researchers, however, has suggested such supplements do improve the performance and behaviour of school-age children with specific diagnoses such as dyslexia, attention-deficit disorder and developmental co-ordination disorder.

ECONOMIST: Eat your way to a better brain