text: When you choose to walk or bike everywhere it not only makes an impact on the enviroment but it also reduces your risks for dieseases like obesity, heart disease, and diabetes. Obesity rates in America are a lot higher than they should be and that's partially due to lack of physical activity. By walking or biking to work or to school you reduce that risk because your heart rate is up and your body is moving. Of course if people stop driving obesity will still exist due to our horrible eating habits but it would help a lot. If there was less driving it would also be beneficial to our health because we would be breathing cleaner air. The air we breathe is often times highly polluted and if there was less cars not as many deadly chemicals would be in the air. There would still be cigarette smoke and factory pollution but it would be dramatically less.