Mainly microbes – Meet your microbiome” is a video by Joe Hanson, the author of the YouTube channel It’s okay to be smart, that focuses on gut microbiota and the importance of bacteria in and on our body. Uploaded during the last week of March, it has already been viewed 5,000 times and received some 30 comments, which is a hint of the very real interest in this topic in society. Thanks to its graphics, you will better understand some key elements, such as the fact that our bodies are home to ten times more microbes than human cells. At the same time, and as Jonathan Eisen also said in his TED’s speech, he explains that not all bacteria are harmful, but that a lot of them are actually tiny friends without whom we wouldn’t be here.

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