Key TakeawaysQuitting smoking appears to have brain benefitsPeople who quit had a lower risk of dementia compared to those who kept puffingHowever, the benefit was blunted if people gained too much weight after quitting.FRIDAY, May 22, 2026 (HealthDay News) Quitting smoking might protect your future brain health, a new study says.People who quit smoking had a lower risk of developing dementia, especially if they didnt gain excess weight afterward, researchers reported May 20 in the journal Neurology.People often worry about what happens after they quit smoking including weight gain and associated metabolic changes, said lead researcher Hui Chen, dean of psychological and behavioral sciences at Zhejiang University School of Medicine in Hangzhou, China.What we found is that quitting is still associated with better brain outcomes but maintaining your weight may help preserve those benefits, Chen said in a news release.For the study, researchers tracked nearly 33,000 middle-aged and older U.S

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