When dementia really starts to take hold, the patient has good days and bad days. You can't predict if he will be lucid on a particular day at a specific time. So, you have to take advantage of the lucid moments on short notice, and keep them short.
A telling sign: if he only makes appearances in mid-day. If he disappears in the late day or evening, it's because the middle stages of dementia often cause "sundown syndrome":
If Biden is at this point, I don't know how he is going to pull off a debate. Maybe they'll try to shift his circadian rhythm to later in the day, keeping him awake in a brightly lit room. Otherwise, he is likely to become irritable and it won't take much for Trump to set him off into a rant.
When dementia really starts to take hold, the patient has good days and bad days. You can't predict if he will be lucid on a particular day at a specific time. So, you have to take advantage of the lucid moments on short notice, and keep them short.
A telling sign: if he only makes appearances in mid-day. If he disappears in the late day or evening, it's because the middle stages of dementia often cause "sundown syndrome":
https://en.wikipedia.org/wiki/Sundowning
If Biden is at this point, I don't know how he is going to pull off a debate. Maybe they'll try to shift his circadian rhythm to later in the day, keeping him awake in a brightly lit room. Otherwise, he is likely to become irritable and it won't take much for Trump to set him off into a rant.