UCL Study Links Decades of Money Stress to Faster Brain Aging — SkimNews
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- UCL researchers analyzed data from 2,759 people in the 1946 British cohort study and found persistent financial hardship or low income in early/middle adulthood was linked to worse scores on verbal memory and processing speed tests by age 53
- In a subgroup who later underwent MRI scans, persistent low income was associated with brain atrophy and ventricular expansion — markers of poorer brain health — at ages 69 to 71
- About 16% of participants were classified as having persistent low income (bottom 20% of the group at least twice across ages 26, 43, and 53), while 12% had persistent day-to-day financial hardship between ages 36 and 53
- The link was strongest among men, people who experienced childhood disadvantage, and carriers of APOE-ε4, a genetic variant associated with higher Alzheimer's risk
- The associations held after controlling for childhood cognitive ability, education level, and childhood disadvantage, and the researchers suggest chronic stress-driven inflammation and constant cognitive load from money worries as possible biological mechanisms
- In a counterintuitive pattern, the hardship group showed slower memory decline between 53 and 69 — likely because they had already lost more cognitive ground by 53, leaving less room to fall further
Why it matters: With roughly 1 in 8 participants meeting the study's threshold for persistent hardship, the findings suggest that reducing chronic poverty could have measurable downstream effects on dementia and cognitive-decline rates — a concrete public-health rationale that goes beyond income support alone.
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