cigarettes and dementia Smoking shrinks the brain drives up Alzheimer’s risk, new study finds Quitting smoking may be associated
Quitting smoking may be associated with a lowered risk of dementia, especially for people who avoid major weight gain after quitting, according to a study published May 20, 2026, in Neurology, the Smoking and Dementia Risk ASH Scotland Smoking and Dementia: Exploring the Studies Altoida Study: Smoking permanently shrinks the brain, driving up dementia risk
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