Understanding multiple sclerosis starts with the basics: where lesions form, why myelin matters, and the most common symptoms that disrupt daily life. In my 7-part "MS Explained in 60 Seconds" series, I break down nerve disruption, the diagnosis process, treatment options, and practical ways to manage MS symptoms affecting the brain, spine, and optic nerve—all shared from my own experience after a 2014 diagnosis at age 38 that revealed damage quietly building for over a decade.