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 and environmental factors could play a more significant role in mitigating these declines than genetic predisposition alone. Experts caution that while the results are preliminary, they underscore the importance of proactive cognitive health strategies as people age.