Water of life
When we drink water, we are not filling up a water storage tank in our abdomen that is waiting to be topped up periodically. Rather, our bodies are actually made up of about 60 percent water, and it is distributed not only in the blood running through our veins, but also throughout the cells and spaces that make up every part of our body. We have an entire organ system (kidneys) devoted to making sure we have the right balance of water in our bodies at all times, as well as a complex network of hormones interacting in feedback loops to manage it all.



