Briefing Chat: Caffeine slows brain ageing, suggests decades of data

Nature

by Benjamin Thompson

February 14, 2026

AI-Generated Deep Dive Summary

A new study suggests that moderate caffeine intake could slow brain aging and potentially reduce the risk of dementia. Researchers analyzed decades of data involving over 130,000 people and found that those who consumed a moderate amount of caffeine showed signs of slower cognitive decline. This adds to growing evidence linking coffee consumption to improved brain health. The study highlights how caffeine interacts with the brain and body, potentially reducing inflammation and improving blood flow, which are key factors in maintaining neural health. While the exact mechanisms remain under investigation, these findings align with previous research suggesting that coffee may offer protective benefits against age-related cognitive decline. This discovery is particularly significant given the global concern over aging populations and the rising incidence of neurodegenerative diseases. Understanding how lifestyle choices like caffeine intake influence brain aging could pave the way for new strategies to promote healthy aging and combat conditions such as Alzheimer’s disease. While more research is needed to establish causation, these findings resonate with public interest in natural ways to enhance longevity and cognitive function. For now, moderate caffeine consumption appears to be a promising avenue for supporting brain health, though individuals should consult healthcare professionals before making significant changes to their diet or habits.

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Originally published on Nature on 2/14/2026