have also seen other factors involved in causing ADD. One of the most common is unrecognized head injury, especially to the front part of the brain. In my experience, many professionals and parents discount or ignore the impact of head injuries. They think that a person needs to have a significant loss of consciousness for a prolonged period of time in order for it to do damage. Our brain imaging work, as well as the work of others, is disproving this notion. More on head
