The best real clue about Alzheimer’s of late has come from dentists.
For many years they noted a connection between chronic gum disease and Alzheimer’s. The particular gum infection seemed to be from one or more of the five types of spirochete bacteria that typically live in the mouth.
Ordinarily, when blood is circulated to and from the brain, it must pass through the blood-brain filter, that limits bacterial infections in the brain. But some of the facial capillaries, especially with the gums, have a direct route to the brain.
So their hypothesis is that the bacteria travel to the brain, do not cause an infection there, but die there. And over years, their microscopic remains build up as the “plaque” associated with Alzheimer’s.
The best part is that if this is true, there is an easy and very inexpensive way to prevent it.
Before toothpaste was common, people brushed their teeth with a combination of baking soda and salt. And ordinary baking soda is known to kill all five of these spirochete bacteria within five seconds of exposure.
So what these dentists are now recommending is that once or twice a week, that people alternate using toothpaste with using common baking soda. (Baking soda toothpaste isn’t concentrated enough). The regular toothpaste helps prevent plaque and tartar build up on the teeth, and the baking soda kills off any spirochetes that take up residence.
Ha! I am doing something right! I have brushed my teeth with baking soda only for 30 years!
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Indeed, as Swordmaker posted on FR a few years ago. Extensive thread: