Great question, ! MS develops when the immune system mistakenly starts attacking the nerves in the brain and spinal cord. Doctors don’t have one exact cause, but it seems to be a mix of genetics and environmental factors that can trigger it in some people. Here is an article that explains this a bit more- https://multiplesclerosis.net/what-is-ms/statistics. Hope this helps explain it in greater detail for you. Feel free to ask any questions after taking a look! Kindly, Latoya (Team Member)