We all know that getting dehydrated is not good for our health. What we may not realize is how much water is designed to be part of our human makeup. Even the sound of water has a positive effect on our emotions and health. More important than that, our bodies depend on water. We need both water for living and living water.
Yesterday, we talked about our ability to cool our bodies through sweating. Eccrine glands work inside our cells to produce sweat, and humans have more of those glands than any other animal. When we lose significant amounts of water by sweating, a complex network of hormones and the electrical system that controls our kidneys work together to concentrate our urine.
The necessity of water for living means that we must constantly add water to our bodies, and to do this, we have great flexibility in our diets. In the United States, about 20% of the water we take into our bodies comes from the food we eat. In Japan, that number is around 50%. People get water by eating fruits and drinking milk, which is 87% water.
Humans are more locked into water than we may realize. We all travel by using water as the marker for where we stop. In our culture, it is often rest areas along the highway. In others, it may be desert springs or finding jungle plants that hold water. We spend large amounts of money on the construction of devices to bring water to us. Two thousand years ago, the Romans built a series of aqueducts to move water 16 kilometers to supply 50,000 people in the city of Caesarea. In today’s world, we build enormous pipelines to supply water to places where there are shortages.
When Jesus began to teach, He referred to His message as “living water” (John 4:10). In reality, the only thing more important than the water that sustains our physical lives is the living water that takes us to eternity. Revelation 22 pictures heaven with “..a pure river of the water of life, clear as crystal, proceeding out of the throne of God and of the lamb.”
Reference: Scientific American, July 2021, pages 40-44.