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 regions linked to memory and decision-making. The findings suggest that lifestyle interventions could play a critical role in mitigating these declines, though the exact mechanisms remain under investigation. Experts emphasize the need for further exploration to determine how environmental and genetic factors influence these patterns.