Once a heat casualty always a heat casualty. I fall into this catagory unfortunantly for the past 4 years now. I maintain my hydration throughout the day everday but still find that I can not complete even a 2 mile run without my camelback to keep my body temp down. I am preping for a possible retrain so I've really stepped up my pt with the DCs here. I was hoping someone out there might have some helpful tip or tricks they use.