A new study reveals that the brain’s ability to process and retain information may decline more sharply with age than previously understood, particularly in regions critical for memory and decision-making. Researchers found that even in healthy individuals, subtle structural changes in the hippocampus and prefrontal cortex accelerate after middle age, potentially explaining why cognitive tasks become more challenging over time. The findings challenge the notion that aging alone inevitably leads to severe decline, instead highlighting modifiable factors that could slow progression. Experts suggest lifestyle interventions may play a key role in mitigating these effects.