
07/07/2025
According to recent research, harmful bacteria from gum disease may play a role in increasing the risk of developing Alzheimer’s disease. These bacteria can enter the bloodstream through inflamed or bleeding gums and eventually reach the brain, where they may trigger inflammation or contribute to plaque buildup associated with Alzheimer’s.
The study found that people with chronic gum disease had a higher chance of having Alzheimer’s-related changes in the brain. One of the key bacteria involved is Porphyromonas gingivalis, a known cause of periodontitis. This bacterium was found in brain tissues of people with Alzheimer’s, and animal studies showed that once the bacteria reached the brain, it led to the production of amyloid-beta — the same protein that builds up in Alzheimer’s patients.
This study highlights that oral care isn’t just about preventing cavities or gum disease — it could also be protecting your brain. Inflammation in the mouth might trigger inflammation in the brain, and over time, this may increase the risk of cognitive decline.
Keeping your gums healthy might be one of the many steps you can take to support long-term brain function and reduce your risk of serious conditions like Alzheimer’s.
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