Can Viruses Trigger Alzheimer’s Disease?

Emerging research suggests a potential connection between certain viral infections and the development of Alzheimer’s disease. Scientists have found evidence that viruses, particularly herpes simplex virus type 1 (HSV-1), may play a role in triggering or accelerating the disease in genetically susceptible individuals. The theory is that viral infections can cause chronic inflammation or activate immune responses in the brain, leading to the buildup of amyloid-beta plaques and tau tangles—hallmarks of Alzheimer’s. 

Additionally, some studies have shown that people with frequent viral infections may have a higher risk of cognitive decline later in life. While this area of research is still developing, it highlights the importance of understanding how infections and immune system activity could influence neurodegenerative diseases like Alzheimer’s.

Thankfully, vaccines exist for many of the most dangerous viruses, and these vaccines have been linked with lower Alzheimer’s disease risk.

AARP has a recent story that covers this very topic. To read the piece, CLICK HERE.