The overuse of antibiotics is risky business. Because bacteria are living organisms, they can mutate or change over time. As a result of decades of antibiotic use, some bacteria have changed and become resistant to certain types of drugs. These so-called "super germs" are stronger, so they no longer respond to the medications. They also have the power to affect larger portions of the population with more serious illnesses, making it more difficult to fight them off naturally with .