A UK study of 2,759 people from the 1946 British cohort found persistent money struggles or chronic low income in early and mid-adulthood are linked to worse cognitive performance by age 53 and greater brain aging by ages 69–71, with stronger effects in men and those with disadvantaged childhoods or the APOE-ε4 Alzheimer's risk variant. Researchers say reducing poverty could help prevent cognitive decline and dementia, highlighting the cumulative impact of long-term financial adversity.
