There are potentially billions of different types of bacteria, which are found almost everywhere. Some are friends while others are foes. For the few microbes that have the potential to make you sick, you can try to kill them with an antimicrobial cleaner or soap, or an antibiotic. But those that survive may actually become stronger. In this episode, we discuss the threat presented by antimicrobial resistance, why it's becoming more of a problem, and why there is reason for hope.