When I had a lot of stress in my life, my MS was in overdrive. And stressful situations also made my blood pressure go very high. Stress is bad for anyone in high doses but if you have MS and high levels of stress, I believe that it can aggravate the MS significantly.

Now the stress is reduced and my MS is mild, and my blood pressure totally under control. I know there is a direct relation and many studies will confirm this relation in many situations.