You are 90% Bacteria and only 10% human
If you pick up a handful of garden soil you will be holding hundreds if not thousands of different kinds of microbes. One single teaspoon of soil contains 1 billion bacteria & 120,000 fungi & 25,000 algae
Microbes have been around longer than anything else on Earth, longer even than dinosaurs. If you imagine Earth began as a single day: Microbes appeared at 5am, Dinosaurs appeared at 10pm… and humans appeared seconds before midnight
There are more microbes on one person’s hand than there are people on the planet.
Most microbes do not cause disease – less than 5% do.
There are 10 times more bacteria in the average human’s digestive system than there are cells in the entire body. This is approximately 1kg of bacteria!
Microbes generate at least half the oxygen we breathe.