Louis Theroux glimpses the future:
It's reckoned that one in eight Americans aged 65 and over has Alzheimer's – the most common cause of dementia. Nearly half of the over 85s has the disease. As medical science has become better and better at prolonging our lives, the mental side of things hasn't kept pace. Nowhere is this more in evidence than in Phoenix. For years Phoenix has been a mecca for America's elderly, who are attracted by the year-round sun and dry desert heat.
Now increasingly it is a kind of capital of the forgetful and the confused.
(Clip from "Away From Her," a film based on an Alice Munro short story about a couple dealing with Alzheimer's)
The Dish 