Although all of us desire longevity, at the same time one of our greatest fears is any decline in our mental powers. One day, you might wander through your home, forgetting what you were looking for. Or you might finish a book and the next morning can barely remember the plot. You miss appointments unless you write them down. Friends and family members comment on your forgetfulness. With a chill of horror, you think, “Alzheimer’s disease!” Actually, this is very unlikely. You’ve just not been paying attention to your brain health. This has a name, “cognitive decline,” a description of what you’re experiencing, rather than an actual disease.