A body volume loss. We discussed above such a dangerous cholera symptom as flux, which causes a great body water loss. This dehydration relieves the body of vital fluids. Looking back at the origins of science it may be obvious that everything has its mass and, thus, its own weight. Thus, as far as the sick person cannot keep the body water inside anymore, most of the useful substances are washed out from the body. The body weight is also decreasing. When the body is strong and resistant, it still needs great nutrition for proper functioning. If the body is sick, it needs active nutrition especially, even doubled.