An illustration of the impact of multiple sclerosis on the brain. On the left, a brain with white areas denoting MS damage. On the upper right, close-up of regular myelin, and below, damaged myelin. (wildpixel via iStock by Getty Images)
https://www.timesofisrael.com/jerusalem-study-finds-stem-cell-treatment-freezes-ms-lets-some-walk-again/