Dementia Prevention Guidelines Updated—Here's What Changed
Summary
The World Health Organization (WHO) has updated its guidelines on preventing dementia, highlighting that up to 45% of cases might be prevented or delayed by managing risk factors like smoking, alcohol use, and lack of exercise. For the first time, air pollution is officially recognized as a risk factor, and there is new advice about brain training and social activities to help protect cognitive health.Key Facts
- WHO's new guidance is the first major update since 2019 on dementia prevention.
- Around 57 million people worldwide live with dementia, with nearly 10 million new cases each year.
- Up to 45% of dementia cases could be prevented or delayed by addressing lifestyle and environmental risks.
- Air pollution is now officially listed as a factor that increases dementia risk.
- Regular brain exercises, called cognitive training, are recommended for people with normal or mildly impaired cognition.
- Social engagement and participating in activities with others help protect against cognitive decline.
- WHO advises continuing regular physical activity, stopping smoking, reducing alcohol, managing blood pressure and diabetes, eating well, and monitoring hearing health.
- Taking vitamin supplements specifically to prevent dementia is not supported unless a deficiency is known.
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