She added, “People who cook regularly may also have healthier diets, be more physically active, and be in better overall health, all of which are linked to better brain health. It’s also possible the reverse is true: people with early memory and thinking problems might lose the ability or motivation to cook, leading them to cook less often”.
Article source: https://www.huffingtonpost.co.uk/entry/cooking-lowers-dementia-risk_uk_6a15a898e4b0457678e48b4e