Re:Viral illnesses may increase chances of developing neurod...
by mxkopy on Saturday January 21, 2023 @01:55AM
(#34464479)
https://en.wikipedia.org/wiki/Spleen
"The spleen plays very important roles in regard to red blood cells (erythrocytes) and the immune system. It removes old red blood cells and holds a reserve of blood, which can be valuable in case of hemorrhagic shock, and also recycles iron."
This is a simplification of a well researched process which we understand and can read about. What the previous poster wrote was just speculation as far as I can tell, unless someone wants to post some reference about cleaning the brain and blood?