The first generation to be aware of the existance of Alzheimer's BEFORE most of them were old enough to have to consider the possibility is turning 60 faster every day. How long until we see the first of what will be MANY "Rear Window" variations on the theme of "I saw a murder (or did I?) and no one will believe me because I've been diagnosed with Alzheimer's!!!" movies? This'll be BIG with aging leading-men.
"Dad... I know what you THINK you saw..."
"I KNOW what I saw!!!!" ::throws medication at wall::