These poisons also get into our bloodstreams and add to the incredible toxic burden our bodies must deal with. Bad air can make us sick, and our bodies, just as cars, will not run right without plenty of good, clean air. Every process of life depends on it. Our cars need it for cooling, mainly. So do we, but we also need it for thousands of other reasons.
Bad water can clog the radiator of our car and make it overheat.
Bad water in our bodies can poison them and break them down. Dozens of nasty poisonous chemicals can be found in the water of some cities. And what happens when you have a safe level of dozens of different poisons. We know we are being poisoned and malnourished. As we hinted above, the answer is already provided by Mother Nature.