The Human Microbiome: 20 Reasons Why Microbes Are Important

The trillions of microorganisms that live in and on you affect pretty much everything that goes on inside your body. They affect your eyesight, how well your liver functions, your cognitive abilities, and the workings of your digestive system, among other things. If you’re a regular reader of, this is something you undoubtedly know. However, if you’re new to this site and/or have never paid much attention to the role microbes play in human health, then you’re probably unaware of the fact that the trillions of critters that call your body home greatly influence your health and well-being.

Over the years I’ve written dozens of articles on the human microbiome, many of which include in-depth discussions about how bacteria affect human health. I realise that not everybody is interested in reading these long and comprehensive articles; they just want some quick and simple information and advice that help them understand why microbes are important and what they can do to take better care of their microbiome. For that reason, I sometimes create infographics that explain things I believe everyone should know about human-associated microorganisms.

The infographic below, which I just created, lists 20 reasons why microbes are important. My hope with making this infographic is that it can serve as an introduction to the role microbes play in human health for those who are new to the world of the microbiome and help get more people interested in the smaller organisms that colonize the human body. Keep in mind: The list is by no means exhaustive. It just mentions some of the many things that human-associated microbes do. If you are interested in learning more about the microbiome and are looking for a more comprehensive overview of its many functions, then you should check out my previous articles on the topic.

If you like the infographic, then please share it with your friends and family!



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