Emerging research suggests that infections from viruses like herpes (e.g., shingles) and SARS-CoV-2 may increase the risk of developing dementia, including Alzheimer’s disease. These viruses can trigger inflammation in the brain, which may lead to memory problems and other cognitive issues over time.
The herpesviruses, including those that cause cold sores and shingles, can activate certain genes in brain cells, disrupting their normal function. SARS-CoV-2, even after mild infections, has been linked to higher levels of proteins that are associated with Alzheimer’s, such as β-amyloid. This suggests that the virus might contribute to neuroinflammation, which damages brain cells.
Get vaccinated: Vaccines, like the shingles and COVID-19 vaccines, may lower the risk of dementia by preventing viral infections.
Stay mentally and physically active: Regular exercise and brain activities like puzzles can help keep your brain sharp.
Manage your health: Keep up with regular check-ups to catch any potential issues early, especially if you experience memory problems.
Support your immune system: A healthy diet, enough sleep, and stress management are important for overall health and brain protection.
While the link between viral infections and dementia is still being studied, vaccination and a healthy lifestyle remain key ways to protect your brain as you age.
Sources: Alzheimer’s & Dementia, Nature Medicine, Nature Neuroscience