 And they become afraid of the dark. And, yes, they do have some delusions and this, that, and the other going on. The big difference in when a doctor is diagnosing sundowners, which they do go hand in hand. It starts out as dementia. And a lot of the time it will go into sundowners. And it's usually people that live alone, the elderly. But the difference is when you get Alzheimer's, you have no short-term memory.