About 1 million people in the U.S. live with multiple sclerosis, a chronic autoimmune disease that inflames the nervous system and scrambles communication between the brain and body. MS, for which there is no single cause or cure,…

About 1 million people in the U.S. live with multiple sclerosis, a chronic autoimmune disease that inflames the nervous system and scrambles communication between the brain and body. MS, for which there is no single cause or cure,…