People who are prone to cold sores may have double the risk of dementia later in life, a study has suggested.Researchers from Uppsala University in found that people who have been infected with the herpes simplex virus (HSV) - which causes cold sores - at some point in their lives were twice as likely to develop all forms of dementia, compared to those who were never infected.It is thought that the virus could increase the risk of because fragments of the virus stay in your body for life and there is some evidence they travel to the brain where they , which are hallmarks of dementia.
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