Study Links Financial Hardship to Cognitive Decline
A recent study has found that adults who experienced ongoing financial struggles exhibited poorer cognitive performance and accelerated brain aging as they got older.
Researchers from University College London analyzed data from 2,759 participants born in 1946, as part of the MRC National Survey of Health and Development.
Those who reported enduring financial difficulties or low income performed worse on cognitive assessments focused on verbal memory and processing speed.
Participants with low income also demonstrated poorer brain health via MRI scans, which assessed aging markers like brain shrinkage and enlarged ventricles.
Dr. Jacques Wels, a study author from the Unit for Lifelong Health & Ageing at UCL, explained, “While we know cognitive decline relates to genetic risks and adverse childhood experiences, we previously understood little about the cumulative effects of persistent financial stress over a lifetime.”
Wels further noted that the findings indicate a strong correlation between prolonged financial adversity and cognitive decline, as various measures consistently led to the same results.
The strongest associations were identified among men, individuals with disadvantaged childhoods, and carriers of the APOE-ε4 genetic variant associated with a higher risk of Alzheimer’s disease.
“Cognitive decline isn’t just about genetics or individual choices; it’s also influenced by life experiences that may be beyond our control,” Wels remarked. Researchers posited that chronic financial adversity over decades is more impactful than short-lived moments of hardship, linking it to accelerated cognitive aging.
They suggested that chronic stress might lead to inflammation or increase cognitive burden from ongoing financial worries. However, the study’s observational design has its limitations, as it can’t definitively prove that financial stress directly causes cognitive issues.
While the study focused on individuals born in 1946, Wels mentioned that the context of their life experiences is significant. For example, the stronger effects seen in males reflect traditional roles that might not apply to newer generations.
Even after considering other contributing factors to brain health, unmeasured variables may still skew the results. The authors stressed that reducing long-term poverty could potentially benefit brain health, but more research is needed to see if improving financial situations directly decreases the risk of cognitive decline and dementia.
