If the problem being addressed is one of brain dysregulation, then the answer is yes, and that covers a lot of ground. Neurofeedback involves learning by the brain and if that brings order out of disorder, the brain will continue to use its new capabilities, and thus reinforce them. At times there are unknown issues such as early-stage degenerative disease, allergies, strong reactions to some foods or pollens, or spills and falls leading to bumps on the head. In these instances longer courses of the LENS may be needed. And it may also be that some direct medical help may be the best course of action. The LENS can’t do everything for everybody. But it can and has made a difference that other approaches have not provided, and in general, in a much shorter time. Matters are different when we are dealing with degenerative conditions like Parkinson’s or the dementias, or when we are working against continuing insults to the system, as may be the case in the autism spectrum. In such cases, the LENS sessions may need to be continued at some level over time. Allergic susceptibilities and food intolerances may make it more difficult to maintain the gains. Poor digestive function will pose a problem, as does poor nutrition. A child living in a toxic environment (in either the physical or the psychological sense) may have more difficulty retaining good function.