The progression of Alzheimer’s disease is so insidious and slow that patients go through a period of decline where their memory is clearly worse than its baseline, yet they still do not meet criteria for dementia.
Progresseerumist Alzheimeri tõbi on nii salakaval ja aeglane, et patsiendid läbida jooksul väheneb, kui nende mälu on selgelt halvem kui selle ravi, Aga nad ei vasta ikka veel kriteeriume dementsus.