When the immune system does not work properly, chemical sensitivity results and the body reacts to food dyes, additives and other chemicals found in our foods. It also reacts to environmental chemicals ranging from the toxins under your sink to common plastics. The brainwaves of ADD patients are stuck in an abnormally slow rhythm. It speeds up brainwaves. A more natural, holistic approach to ADD pays attention to all the factors which cause it.
ADD is like many other diseases of modern life.
It has no single cause and it is a result of the interplay of genetics, stress, bad diet, and accumulated toxins. The same factors that cause ADD in some people may cause a different problem in others with different genetic predispositions. The different therapies that have been shown to work on ADD all address different parts of the overall problem. A non-drug approach to the problem is to retrain the brain to produce normal brainwaves. This is not biofeedback.