When a person becomes ill and loses large amounts of water through vomiting or diarrhea, The body temperature can rise rapidly .
Unless fluids can be quickly replaced, death can occur.
The human body is composed of 45-60 percent water by weight.
The exact percentage will depend on the amount of fat, bone and muscle present.
Men usually have a slightly higher percentage of water present in their bodies than women
This is because they have a higher proportion of muscle to fat