If you bled when you brushed your teeth this morning, you might want to get that seen to. We may finally have found the long-elusive cause of Alzheimer’s disease: Porphyromonas gingivalis, the key bacteria in chronic gum disease.
https://www.newscientist.com/article/21 ... o-stop-it/
Here's a really fascinating article on the latest research related to Alzheimer's disease. The ameloid and tau proteins that form in the brain and are associated with the disease may represent our bodies' adaptation to fight bacteria attacking brain tissue. In other words, they are not the cause, but the symptom, of the disease...which is totally different than what I learned in graduate school just a few years back.
If you have a history of dementia in your family (~70 percent of dementia is Alzheimer's-related) or are just interested in some popular science, it's pretty cool.