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flag Quitting smoking at any age slows cognitive decline, lowering dementia risk, a global study of 9,436 adults shows.

flag A large international study finds that quitting smoking, even in middle age or later, is linked to slower cognitive decline, with former smokers showing 20% less memory loss and 50% slower decline in verbal fluency over six years compared to current smokers. flag The research, based on data from 9,436 adults across 12 countries, suggests quitting may reduce long-term dementia risk, though the study is observational and cannot prove causation. flag Experts say it’s never too late to benefit, as smoking cessation improves brain health by enhancing blood flow and reducing inflammation, and emphasize the need for stronger tobacco control and support for older smokers trying to quit.

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