You may think of yourself as a single being or a single creature, but your body is brimming with bacteria. Other than ‘you’, that’s about 100 trillion more creatures, more ‘bugs’, as they are called. They teem and brush up against each other, forming many microbial municipals in your mouth, nose, gut, skin and genitals. However, you’ve never properly met any one of them, because nobody can ever see a microbe with a naked eye. To get a glimpse of them, you would need a microscope. Yet, as small as they can be, their role in equipping us for life cannot be understated.