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Illustration showing a brain artistically lit up from an immune attack and a close-up of damaged myelin around a nerve.

Media Folder

2025

Title

Illustration showing a brain artistically lit up from an immune attack and a close-up of damaged myelin around a nerve.

Caption

Multiple sclerosis is caused by the immune system attacking the protective sheath around nerve cells in the brain.

Credit

Lightspring / Shutterstock

Description

Illustration showing a brain artistically lit up from an immune attack and a close-up of damaged myelin around a nerve.
OD

Site_Section

NIH Research Matters

Alt Text

Illustration showing a brain artistically lit up from an immune attack and a close-up of damaged myelin around a nerve.