CCSVI is a condition that tries to explain why people end up with MS. Its new area and still lot of research needs to be done. That will probably take another decade to get answers. Remember that after 60 years of research on MS on the immune path, it was still classified as a disease of unknown origin. CCSVI probably answers that part conclusively.sofia wrote: There is so much CCSIV does not explain, it does not explain how MS is clustered around the world. It does not explain why there is a higher percentage of MS patients born in spring. It does not explain why smokers are over represented, it does not explain, why people with MS is low on vitamin D. But maybe these factors can have an impact on your veines, and how they develop.
Having said that, if you take an example of cancer, it is not clear why the cells change from healthy into cancerous cells. Why they multiply so fast. That does not preclude available treatment.
I think human body is too complex to understand even though its available for everyone to see and study. Scientists still don't understand how baby development takes place. That's the reason why we keep seeing reports that X is harmless for baby's growth one day and the same thing contradicted the next day. The main reason is that the fundamental process is still not understood.