When it comes to fighting dementia, the unfortunate news is this: Medicines have proved ineffective in treating or stopping the disease and its most common form, Alzheimer's disease. But that's not the end of the story. According to a recent wave of scientific studies, we have more control over our cognitive health than is commonly known. We need to take certain steps – ideally, early and often – to live a healthier lifestyle.
In fact, according to a recent report commissioned by The Lancet Medical Journal, about 35% …