I'm guessing the shrinking boards refer to cells the shriveled because of lack of water. When there is less water in the outside of the cell (hypertonic), the water inside the cell diffuses to the outside causing the cell to shrivel, so I guess that's the shrinking part.
I don't know how you could conserve body water lol but maybe keep yourself cool so as not to sweat too much
I don't know how you could conserve body water lol but maybe keep yourself cool so as not to sweat too much