Studies have long tied oral bacteria to heart disease and infection in joint replacements. Now, they are looking at oral bacteria as one possible trigger for the type of Alzheimer’s disease that strikes people over 65. While we all have these bacteria, and there is a threat of the bacteria entering our bloodstream, the further threat is that some of these bacteria may get through the blood-brain barrier causing inflammation in the brain. Many researchers consider inflammation in the brain to be one of several triggers that may cause Alzheimer’s.
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