A 24-year study tracking more than 8,200 adults has found that excess body weight may accelerate brain aging, with researchers reporting faster declines in memory, concentration, and decision-making skills among participants carrying additional weight. The findings, published as part of a long-term health investigation, add to a growing body of evidence linking obesity to cognitive deterioration and raise questions about the neurological consequences of rising global obesity rates.
The association was particularly pronounced among participants over 65, suggesting that older adults may be especially vulnerable to weight-related cognitive decline. While the study does not establish direct causation, its extended follow-up period strengthens the case for viewing excess weight as a modifiable risk factor for brain health. Researchers caution that further work is needed to clarify the underlying mechanisms, but the results underscore the importance of weight management as populations age.
Independent reporting synthesized from primary wires and global correspondents.