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Health

How the microbiome changes our idea of what it means to be human

The microbes living on and in you can change your mood, your mind and your health - challenging our ideas about human nature

By Rowan Hooper

3 October 2023

91av. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

A new understanding of the microbiome suggest humans should think of themselves as metaorganisms

Sam Falconer

YOU may, quite reasonably, think you are an individual of the species Homo sapiens. Once you have finished reading what follows, you will hopefully have been convinced that there is far more to us than that. Trillions of other organisms live on (and, more notably, in) your body. As you will see in the reports that follow, their impact on you is such that you will probably never think about yourself in the same way again. Your microbes change who you are…

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