There is one program worth your money. It is a program systematically developed by scientific research and developed over many years of work. As the research progressed, it became apparent that brain-health could be sustained or improved by what might be called cognitive exercise. However, not just any cognitive exercise will perform well. From the early indications that cognitive exercise could modify the brain for the better, a small group of scientists became dedicated to actually developing and systematically improving cognitive exercises that might, indeed, improve cognitive skills of the average citizen. Other scientists (some highly skeptical of the idea) have been involved with further testing the basic idea that cognitive exercises could actually significantly reduce the cognitive decline characteristic of aging and prevent the development of diseases like Alz. We now know that the programs developed by this small group of scientists are effective in sustaining and improving cognition.
The originators established a company called Posit Science, in part to sustain further research and, in part, to use the internet to market the programs that could deliver a product that can, when used regularly, sustain and enhance cognitive skills (and thereby perform a very good service to many). They have named their program of cognitive exercises BrainHQ.
Posit Science has patents on many of their procedures and products. Nevertheless, many companies have developed computer-based cognitive exercises similar to those of BrainHQ. They make programs without a basic understanding of what it takes to actually improve cognitive skills and without scientific studies to guide their development. Consequently, these made-to-only-make-money programs all fail. These quickly developed programs are often flashy and well-advertised, however, they all fail. The multiple disappointments of hastily developed programs of cognitive exercise has fostered the belief that no program of cognitive exercise can be helpful. The good news is: The one program supported by extensive research has been proven to be significantly helpful in sustaining cognitive skills among aging individuals, provided that citizens actually do the exercises.