You may have heard about probiotics and prebiotics — and that your gut health is important for good health. But what’s it all about? Bacteria, viruses, fungi, and other microscopic living things are called microbes — what many people call “germs.” We’re used to thinking of germs as something to avoid. But the truth is that we’ve evolved for millions of years to live with microbes in and on our bodies. You actually have around 40 trillion bacterial cells in and on you. Not onl