This article is brought to you by our exclusive subscriber partnership with our sister title USA Today, and has been written by our American colleagues. It does not necessarily reflect the view of The ...

Multiple sclerosis (MS) is a disease in which the immune system erroneously attacks a protective insulation that surrounds neurons, known as myelin. As myelin degenerates, it leads to a variety of ...

Carley is a writer, editor and social media professional. Before starting at Forbes Health, she wrote for Sleepopolis and interned at PBS and Nickelodeon. She's a certified sleep science coach and ...