(BBC) — Exercise throughout a person's life plays a significant role in reducing the risk of developing dementia, a study spanning 35 years has found.
The Cardiff University study following 2,235 men from Caerphilly, south Wales, found factors including diet and not smoking had an impact on preventing illnesses developing in older age.
However exercise had the single biggest influence on dementia levels.
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Researchers stressed an overall healthy lifestyle was key to cutting disease.