Study links gum disease to mental health conditions
https://www.medicalnewstoday.com/articles/study-links-gum-disease-to-mental-health-conditions
White Tooth Dental Takeaways:
A better title for this article would be "Studies link gum disease to multiple other overall health diseases not related to the mouth"! It is important to note that the mouth is not isolated from the rest of the body and the bacteria and inflammation found in your mouth (from gum disease, cavities, tooth infections, etc) can travel throughout the rest of your body through the digestive system and through your blood (especially if your gums ever bleed when you brush or floss!).
Though there is still research to be done, the evidence is clear that keeping your mouth healthy is an important part of keeping your body (and brain) health as well!