Surprising connection between oral health
ﺑِﺴْـــــــــــــﻢِﷲِالرَّحْمٰنِﺍلرَّﺣِﻴﻢ
اَللّٰهُمَّ صَلِّ عَلٰى مُحَمَّدٍ النَّبِيِّ الْأَمِيِّ وَ عَلٰى أٰلِهٖ وَسَلِّمْ تَسْلِیْمًا
A groundbreaking study has just revealed a surprising connection between oral health and mental health. Researchers analysing data from over 15,000 adults across the United States found that people with lower diversity of bacteria in their mouths were more likely to experience symptoms of depression.
We often hear about the gut-brain connection, but this research shines a spotlight on the oral microbiome, the second-largest collection of microbes in the human body. These microbes help regulate inflammation and play a major role in supporting the immune system, both of which are closely tied to mood and brain function.
Scientists measured the alpha diversity of mouth bacteria, which refers to the number of different bacterial species present. Those with higher bacterial variety generally reported better mental well-being, including fewer signs of sadness, fatigue, and low motivation. Interestingly, the benefits of diversity seem to level off beyond a certain point, suggesting that balance, not excess, is key.
The findings were especially notable in men and non-Hispanic White individuals, where the link between oral microbiome and depression appeared strongest. While it’s still unclear whether depression changes the mouth or vice versa, the connection is now undeniable.
This opens the door to exciting new mental health strategies focused on oral hygiene and probiotics as potential tools to boost mood and brain health.
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