Unlock the Microbiome Secret: How 100 Trillion Tiny Warriors Can Transform Your Body, Mind, and Life Forever
Ever wondered who’s really running the show inside your body? Spoiler alert: it’s not just you. Hidden in plain sight—and all over you—are roughly a hundred trillion tiny tenants, your microbes, orchestrating a symphony that impacts your weight, mood, and yes, even your risk for serious illnesses. Sounds wild, right? Well, it turns out these microscopic dynamos, collectively known as the microbiome, aren’t just freeloaders; they’re master keys to your overall health. In our hyper-hygienic modern world, many of these crucial critters are under siege, and the fallout can be more dramatic than you’d expect—touching everything from depression to Parkinson’s. I had the privilege to dive deep with Dr. Brett Finlay, microbiologist extraordinaire and co-author of The Microbiome Master Key, who unpacks how our microbial sidekicks shape our lives in ways most of us utterly overlook. Intrigued? You should be. Because the next time your dog wants to lick your face, you might just rethink your answer. LEARN MORE
in: Health, Health & Fitness, Podcast
• July 15, 2025
When you think of the microbiome, you probably think of your gut. But bacteria live all over your body. And they’re incredibly numerous; you play host to about as many microbes — a hundred trillion of them — as you do human cells.
As my guest will explain, these microbial ecosystems are not only ubiquitous but hugely influential for your health — impacting everything from your weight and mood to your risk of developing many diseases.
Dr. Brett Finlay is a microbiologist and the co-author of The Microbiome Master Key. Today on the show, Brett explains what the microbiome is, how modern life — including our overemphasis on hygiene — has damaged it, and how the quality of your microbiome is connected to nine of the top ten leading causes of death, as well as everything from depression to Parkinson’s. Brett also shares how we can boost the health of our microbiome, including whether probiotic supplements are effective, how something as simple as flossing your teeth can cut your risk of Alzheimer’s by 50%, and why you might want to let your dog lick you in the face.
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