Education reform linked to reduced dementia risk

A study published in the Proceedings of the National Academy of Sciences suggests that additional years of schooling can reduce the risk of Alzheimer's disease and related dementias. Researchers analyzed a 1972 compulsory-schooling reform in England, Scotland, and Wales that raised the minimum school-leaving age from 15 to 16.

By using a specific birth date cutoff from 1957, researchers were able to compare individuals born only days apart who faced different educational requirements. The findings indicate that those required to stay in school longer were less likely to receive a dementia diagnosis in their 60s.

Notably, the study found that the gap in dementia incidence between individuals with high genetic susceptibility and those with low genetic risk significantly narrowed among the group that received more education. This suggests that education may act as a protective factor even for those with a high inherited risk, potentially mitigating the impact of genetic predisposition.