In the field, what you are referring to is described as "cognitive reserve". People with higher educations levels or who have a more active lifestyle suffer le

In the field, what you are referring to is described as "cognitive reserve". People with higher educations levels or who have a more active lifestyle suffer less from the earlier stages of dementia, because they are better able to develop coping strategies. So, it is similar to exercise in the way that if you are fitter, then you can better weather adverse events. However, cognitive reserve doesn't delay the underlying progress of Alzheimer's disease.