Over the years, conventional antibiotics have been used so extensively that many of the bacteria that cause disease have grown resistant to them.
Bacteria become resistant because of selection.
Bacteria are constantly mutating, so by continually challenging bacteria with antibiotics, susceptible bacteria are eliminated but the resistant ones that remain are given the opportunity to grow. These resistant bacteria can cause infections that are harder to treat, which means that antibiotics won t work as well when they are really needed to fight life-threatening infections. Many people think that antibiotic resistance is only a problem for people who abuse antibiotic prescriptions, but it's not true. When people don't take antibiotics properly, the health of the entire public is at risk. Even if you haven't taken antibiotics for five to 10 years, if resistant bacteria infect you, you will be more difficult to treat.