Our aging brains collect tangles and sticky plaques that can interfere in our cognition and memory. But some older adults with this neuropathology have more cognitive resilience than others, reports a new Northwestern Medicine study. The reason: their personalities. Personality traits were associated with cognitive resilience, which is the ability to better live with the neuropathology in the brain that causes dementia. Individuals with a greater tendency toward self-discipline, organization, diligence, high achievement and motivation — a trait known as higher conscientiousness — were associated with greater resilience.