There are currently 10 million Americans providing 8.5 billion hours of unpaid care to people with Alzheimer's disease or other dementias, according to an estimate from the Alzheimer's Association. Seventy percent of people with Alzheimer's live at home, cared for by family and friends. As Bill Couturié explains: "Not only is it very expensive to pay for care in a nursing home, but the patient is someone you love a lot - a mother, father, spouse. Someone who has taken care of you, and so it's only natural to want to take care of them." Alzheimer's can take a great toll on the physical and emotional well-being not just of the patient, but of the caregiver as well. "It's not uncommon for the caregiver to die before the patient. It's a 24/7 job and often the caregiver has no help.