[radford-neal]

One hears stories of people with dementia having a day or two of mental clarity just before they die. Could this explain that? Perhaps their bodily processes are failing so much that normal glucose production is impaired, leading to ketones being produced instead, and temporary clarity before the failures lead to death...

[mathgeek]

Possible, but we’d need more research on Terminal Lucidity at this point in time: https://alz-journals.onlinelibrary.wiley.com/doi/epdf/10.100...

[agumonkey]

I wish i could read about this 'honeymoon' effect, it's so strange.