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Can exercise prevent dementia?

While the 10,000 steps target wasn't scientific, regular physical activity, even moderate amounts like the 4,000 steps mentioned, is strongly linked to better brain health. Exercise helps maintain blood flow to the brain, reduces inflammation, and can even encourage new brain cell growth, all of which may reduce the risk of dementia.

Stories that explain this

10,000 daily steps came from a pedometer advert, not science

Questions this opens up

What is dementia? How does exercise help my brain? Can diet prevent dementia?

This explainer came from a news story

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