What is a microbiome — a scientist’s explanation of how our newest organ affects us

Sam Westreich, PhD
6 min readJul 31, 2018
Source: IBM Research on Flickr

A decade ago, I’d never heard of a microbiome. Today, I hear about them constantly.

Okay, yes, I hear a lot about microbiomes because it’s part of my job title. I’m a microbiome scientist, and I work on building computer programs to study this environment, how it interacts with our bodies, and its effects on health — or…

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Sam Westreich, PhD

PhD in genetics, bioinformatician, scientist at a Silicon Valley startup. Microbiome is the secret of biology that we’ve overlooked.