For many years, researchers have thought that higher levels of education protect against cognitive decline and dementia in later years. An international team including Cam-CAN conducted a meta-analysis across 33 countries which showed that, while more education is indeed associated with better cognitive and brain health in later life, it does not reduce the rate of decline of cognitive and brain health over subsequent years. This cross-sectional but not longitudinal association is more likely to reflect stable, early-life differences between people (e.g., genetics), which lead to different degrees of education, rather than education protecting against ageing and dementia.

Cambridge Centre for Ageing and Neuroscience
