Immune System Maintains Brain Health......

"Saying the immune system is always good for the brain, it’s wrong; saying it’s always bad for the brain, it’s wrong. It depends on the conditions." - Jonathan Kipnis - Univ of Virginia

Michal Schwartz - Weizmann Institute - Israel "has similarly found evidence for the immune system’s ability to protect against neurodegeneration"

http://mobile.the-scientist.com/article/47289/immune-system-maintains-brain-health

Once thought only to attack neurons, immune cells turn out to be vital for central nervous system function.