Medically reviewed by Sameena Zahoor, MDMedically reviewed by Sameena Zahoor, MD The meninges of the brain and spinal cord are three layers of membranes: the dura mater, arachnoid mater ...

Here's what bacterial meningitis is, how it's different from viral and other types of meningitis, and what treatment can be expected.

Stationed within the meninges, squads of immune cells lie in wait, ready to unleash an inflammatory assault within the brain if needed. Holding these trigger-happy troops back during peacetime falls ...

Can immune cells protect your brain? Yes! Tregs act as gatekeepers, controlling inflammation and supporting memory formation in the hippocampus.