In the United Kingdom, the leading cause of death since 2011 is dementia.
The statistics are alarming: One in three Americans 85 or older has Alzheimer's disease.
For many married clients, one partner will suffer from the disease or another form of dementia while the other becomes a caregiver.
The journey from early symptoms to death spans an average of 12 years, and patients can require 24/7 care, because they often are physically fine: They remain ambulatory, can turn on a stove, drive a car, pick up a firearm.
This makes them a danger to others and also to themselves; "Wandering" is a common occurrence where patients simply walk out their front door — often necessitating the need for search and rescue teams to find them.
Thus the need for supervision, to ensure that they don't harm themselves or others.
If you have a parent with such a brain condition, you know the financial and emotional toll. And let's be clear: There is no reliable diagnostic tool, few treatments at huge cost and of questionable benefit, no cure and no vaccine. The illness is 100% fatal.