Navigating the Different Stages of Alzheimer’s Disease as a Caregiver Alzheimer's Disease develops over time, causing changes in the brain that affect a person's memory, thinking and behavior. According to the Alzheimer’s Association, more than 5 million Americans are living with Alzheimer's Disease, and 16 million Americans serve as unpaid caregivers to loved ones with Alzheimer’s Disease or related dementias. With every change to a loved one’s health as the disease progresses over time, these 16 million caregivers are along for the journey right there with their loved one. Read more