Over the last few months I've had a rather significant number of folk who've had insight but haven't wanted it.
Several people with dementia have been on treatment for this which has maintained their thinking, memory, concentration and function for a goodly length of time.
As time's marched on, their deficits have progressed. They know they're losing their memory. They know they're losing their attention span. They know they're losing their orientation. They know they're losing their organisational skills. They know their decisions are less considered. They know their function is deteriorating (e.g. no longer being able to dress themselves since they can't manage shirt/blouse buttons). They know they're losing weight since they don't appreciate feelings of hunger/satiety so much now. They know their mood's got worse, being pretty glum and anxious. They know they can't recognise friends they see less frequently now.
Their dementia is progressing. They know.
This insight causes feelings of disquiet, of anxiety, of frustration, of dismay.
This has resulted in a slew of folk wishing to stop their medication, since it was holding them in an unhelpful place, where they had memory problems yet had insight and couldn't forget the woe. The burden was unpleasant. They sought to be relieved of that, to be allowed to forget.
To a one, they've all faired better from stopping their medication. Of course, their cognition and Mini Mental State Examination scores are significantly worse, but they're all, all much more relaxed and less distraught. The knowing is less.
Just sometimes, the loss of memory can be a blessing.