It is one of the most frightening prospects of aging: what about our minds? What happens if memories start to fade and we lose that sense of who we are? Alzheimer's and dementia touches all of us in some way over our lives, so what is being done to combat it? And what can we do to keep our brain's health and watch for the warning signs? Even if we're lucky enough to never face that slow decline, aneurysms and other brain injuries can also affect us where it matters most at a moment's notice. We'll take a look at everything you need to keep in mind when it comes to yours.