Chinese Study of 32,000 Links Quitting Smoking to Lower Dementia Risk After 7 Years
Updated
Updated · Fox News · May 31
Chinese Study of 32,000 Links Quitting Smoking to Lower Dementia Risk After 7 Years
1 articles · Updated · Fox News · May 31
More than 32,000 adults tracked for 25 years showed former smokers had a significantly lower dementia risk than people who kept smoking, according to a Neurology study from researchers in China.
About seven smoke-free years brought dementia risk close to that of never-smokers, with the strongest benefit seen in people who gained little or no weight after quitting.
Researchers recorded 5,868 dementia cases during the study, but said the findings show an association rather than proof that quitting smoking directly prevents the disease.
Doctors not involved in the research said the results fit broader evidence that stopping smoking reduces inflammation, vascular damage and other processes tied to cognitive decline.
If quitting smoking causes major weight gain, are you just trading one dementia risk for another?
How does the brain begin to heal itself in the years after a person finally quits smoking?
Smoking Cessation Significantly Reduces Dementia Risk—Managing Weight Is Key to Maximizing Brain Health
Overview
Quitting smoking is strongly linked to a reduced risk of dementia, offering long-term benefits for cognitive well-being and overall brain health. This positive effect is partly due to the reversal of harmful processes caused by smoking, such as vascular damage, oxidative stress, and inflammation, which accelerate neurodegeneration. However, what happens after quitting matters—managing potential weight gain is important, as it can influence the overall health benefits. While the findings are promising, some limitations exist because participants self-reported their habits, which may affect the reliability of the results. Still, stopping smoking remains a key step for protecting brain health.