Lip Blemish Linked to Increased Dementia Risk

A Swedish study suggests that the herpes simplex virus-1 (HSV-1), responsible for cold sores, may double the risk of developing dementia, including Alzheimer's disease. Researchers followed over 1,000 elderly Swedes for 15 years, finding those with HSV-1 were twice as likely to develop dementia. The virus may cause inflammation in the nervous system, potentially leading to neurodegeneration. However, experts caution that evidence is mixed, with some studies finding no link between HSV-1 and cognitive decline, and emphasize the need for further research.