" The major impairments of ADD — the distractibility, the hyperactivity and the poor impulse control — reflect, each in its particular way, a lack of self-regulation. Self-regulation implies that someone can direct attention where she chooses, can control impulses and can be consciously mindful and in charge of what her body is doing. Like time literacy, self-regulation is also a distinct task of development in human life, achieved gradually from young childhood through adolescence and adulthood. We are born with no capacity whatsoever to self-regulate emotion or action.

For self-regulation to be possible, specific brain centers have to develop and grow connections with other important nerve centers, and chemical pathways need to be established. Attention deficit disorder is a prime illustration of how the adult continues to struggle with the unsolved problems of childhood. She is held back precisely where the child did not develop, hampered in those areas where the infant or toddler got stuck during the course of development. "

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