Guardians of the brain: how a special immune system protects our grey matter

Recommendable! Nice overview article!

"... For a long time, scientists thought that the brain was completely cut off from the chaos of the rest of the body — especially its eager defence system, a mass of immune cells that battle infections and whose actions could threaten a ruler caught in the crossfire.

In the past decade, however, scientists have discovered that the job of protecting the brain isn’t as straightforward as they thought. They’ve learnt that its fortifications have gateways and gaps, and that its borders are bustling with active immune cells.
A large body of evidence now shows that the brain and the immune system are tightly intertwined. ..."

Guardians of the brain: how a special immune system protects our grey matter The nervous and immune systems are tightly intertwined. Deciphering their chatter might help address many brain disorders and diseases.