" Neuroscience has established that the human brain is not programmed by biological heredity alone, that its circuits are shaped by what happens after the infant enters the world, and even while it is in the uterus. The emotional states of the parents and how they live their lives have a major impact on the formation of their children's brains, though parents cannot often know or control such subtle unconscious influences.

The good news is that major changes in the circuits of the brain can occur in the child and even in the adult if the conditions necessary for positive development are created. Quick to arise whenever the environment is mentioned is the question of blame. "You mean it's the parents' fault?" people immediately ask. It is a simplistic notion that if something is wrong, someone has to be at fault. It would not help parents of children with ADD, besieged on all sides by the incomprehending judgements and criticality of friends, family, neighbors, teachers and even strangers in the street, to have yet one more finger pointed at them. "

― Gabor Maté , Scattered Minds: The Origins and Healing of Attention Deficit Disorder