text: In addition to not using personal cars, walking from jobs or to the mall has seemed to make many people in these driving bans less stressful and much happier. From government officials to the commonfolk of the street, all of the Colombians in Bogota look much happier. Even rain hasn't stopped them from biking to work. One woman in Vauban, Heidrun Walter, said, "When I had a car I was always tense. I'm much happier this way." She does not own a car and lives a happy life. She even sold her car to move here, along with 57% of other families who live in the town. Not only does the relaxation of not driving make you less stressful, it also makes you get more excersize. Since 70% of Vauban's families do not own cars, we can assume that they are one of the healthiest cities in Germany or even the world. If all cities in Europe were nearly identical to Vauban then they would have only 3% greenhouse gas emissions from cars, but they would also have a much lower rate of obesity. Even in some parts of the United States, car emissions would go down by 50% which would, in turn, cause obesity to go down by a gigantic number as well. The use of bicycles and your feet would greatly reduce obesity along with increasing happiness.