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Preparing a home cooked meal at least once a week may cut older people's dementia risk by 30%, study finds

Older adults cooking at home weekly had about 30% lower dementia risk, with up to 70% lower risk for those with fewer cooking skills, study authors said.

  • On Tuesday, a study in the Journal of Epidemiology & Community Health found older adults who cook at least once a week have a 30% lower risk of dementia, based on data from 10,978 Japanese participants aged at least 65 tracked for six years.
  • Researchers said that preparing meals "provides opportunities for cognitive stimulation because it involves a cognitively complex series of tasks with multiple steps," such as planning, acquiring ingredients, and serving.
  • Author Yukako Tani noted benefits were particularly significant for participants with fewer culinary skills, who experienced a 70% lower risk of dementia, likely because cooking serves as a novel cognitive experience.
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Common household task once a week found to slash dementia risk

Experts examined data from 10,978 people, aged at least 65

·Glasgow, United Kingdom
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Medical Xpress broke the news in on Tuesday, March 24, 2026.
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