Back in the early 1990s, I had the opportunity to work with David M. Paltin, Ph.D., on his book, The Parents' Hyperactivity Handbook: Helping the Fidgety Child (Plenum/Insight, 1993). Unfortunately, the critical importance of nutritional and environmental causes was not addressed sufficiently in those days-and, in some ways, even today. Attention deficit hyperactivity disorder (ADHD) is, according to the National Institute of Mental Health (NIMH), one of the most common mental disorders among children, one which affects 7.8 percent of all children and is nine-to-ten times more common in boys than in girls. According to the NIMH, "ADHD [...] is characterized by three main symptoms, which occur over a span of time: poor attention, hyperactivity, and impulsive behavior"-with ADHD, itself, broken down into 'inattentive type: 'hyperactive-impulsive type’ and 'combined type.' A number of pre-natal, environmental, dietary and genetic causes have been tied to ADHD. Autism spectrum disorders (ranging from autism to Asperger syndrome) may affect an estimated 3.4 of every 1,000 children between the ages of three and 10 years.