Wet and dry bulb comfort measurements

I found through the school of hard knocks that in dangerously high temperatures that a pure ice slurpee made in a blender can ward off really awful effects. I Make sure I have enough salt in my system then grind ice and stick it in a thermos. I have lowered my body temperature 2+ degrees by eating the ice. I start off slowly but consume a pint or so of shlilusy ice. Too much, too soon may be hard on the body. Alcohol, caffeine or sugar seems to kick my butt. I don't drink but watching other people, beer and booze are both bad for health in broiling temperatures.