Wow I had no idea that cold water was helpful. There is so much I never knew about MG since it was in remission for so long. A lot of the info I am finding out kind of freaks me out but it sounds like it can be dealt with...sort of. My MG was brought on because I got really sick in December (flu and strept throat) I also ran a marathon around the same time and that is when it came out of remission. Clearly the heat from running was not beneficial. However, I have been working out and running 3-5 miles a day for the past 12 years and never had any ill effects. Makes me feel like it is all my fault that it came on. However I dont regret doing the long run, made my best time!