It’s A Bacterial World. We’re Just Living In It.

In 2016, researchers overturned the long-standing belief that a person’s microbiome – the sum total of microbes living in and on our bodies – outnumbered human cells 10 to 1.1 Instead, it’s closer to a 1 to 1 ratio, they estimated. While it’s heartening to learn that we’re not outnumbered in our own skin, the tremendous ubiquity of bacteria, both on us and around us, underscores the notion that it’s really a bacterial world and we’re just living in it.

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