More than five million Americans suffer from Alzheimer’s disease and nearly one and a half million from Parkinson’s disease. And both totals are projected to rise dramatically in the coming decades. Yet relatively little is being spent on new products and other innovations that can help the nation deal better with these debilitating conditions, according to an essay in the July 5 Wall Street Journal. “With healthy brains, Americans will do more than just live longer, they will remain productive longer and contribute to the well-being of our nation instead of adding substantially to the costs and other burdens of healthcare,” the article notes.