7 new dementia risk factors revealed — including one millions struggle with

The World Health Organization (WHO) has released a major update to its guidelines on reducing the risk of cognitive decline and dementia.

The second edition of the original 2019 report was updated to "reflect the latest evidence and advances in dementia risk reduction."

The following seven additional health conditions and exposures were added to the list.

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These new risk factors joined the previously existing 12, which are listed below.