For Chris Russell, an MS diagnosis brought both pain and relief, giving him an answer to why his brain and body had been fighting him.

The Marburg variant of multiple sclerosis is extremely rare but also the most severe. Life expectancy has been weeks or months, but advances in treatment have led to an improved outlook. Multiple ...

In the three years since Christina Applegate was diagnosed with multiple sclerosis, the actress’ medical condition has steadily progressed. During a recent episode of her podcast MeSsy — co-hosted ...