A new study reveals that the brain’s ability to process and retain information may decline more sharply with age than previously understood, challenging long-held assumptions about cognitive aging. Researchers found that even in healthy individuals, subtle but measurable changes in neural efficiency occur earlier than expected, particularly in tasks requiring rapid decision-making and memory recall. The findings suggest that lifestyle interventions—such as targeted mental exercises—could play a more critical role in preserving cognitive function than earlier research indicated. Experts caution that while the decline is gradual, the results underscore the importance of proactive brain health strategies.