A new study in Japan has once again raised questions about the relationship between oral health and brain health; which most experts agree are surprisingly interconnected. It investigated whether problems in the mouth like periodontitis (gum disease) and tooth loss can increase the risk of neurodegenerative disorders like stroke, Alzheimer’s, and other forms of dementia. The results were clear: both issues are associated with a faster rate of atrophy in the hippocampus – the part of the brain which governs memory, learning and emotion. This is a significant result, however, it is not the first time such a link has been made.
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