Maybe more than any other disease, severe cognitive impairments have the potential to unravel families. They’re not one and done. They drag on. They aren’t “lethal” in the normal sense. People with Alzheimer’s can lead long lives, the latter halves of which can get very difficult for everyone involved. There’s an entire body of literature devoted to studying the effects of Alzheimer’s on families and caregivers and discovering effective methods for mitigating the damage done. You don’t get that so much with other diseases.
Yet for whatever reason, Alzheimer’s doesn’t get enough attention. Sure, it’s mentioned. People are aware it exists. They can probably name the general symptoms. But it doesn’t seem as pressing a concern as something like cancer, diabetes, or heart disease.