One typical morning, Sarah Nickerson, a woman in her mid-thirties, is late for work, racing in her car after dropping her kids off at school and daycare. She tries to phone in to a meeting she should already be at when she takes her eye off the road for a second too long. In that blink of an eye, all the rapidly moving parts of her over-scheduled life come to a screeching halt. Sarah suffers a traumatic head injury. Her memory and intellect are intact,...