Microbiome 101

From the human microbiome wikipedia page:

The human microbiome is the aggregate of all microbiota that reside on or within human tissues and biofluids along with the corresponding anatomical sites in which they reside, including the skin, mammary glands, seminal fluid, uterus, ovarian follicles, lung, saliva, oral mucosa, conjunctiva, biliary tract, and gastrointestinal tract. Types of human microbiota include :bacteria, archaea, fungi, protists and viruses.

That is a very precise and technical definition. While it's useful to have a scientific understanding of our microbiome its not necessary.

My personal approach is a hybrid of science and fishing. Every fisherman is a steward of the water they fish and is concerned about the health of the flora and fauna that inhabit it. Sometimes natural resources become depleted and need to be restocked to maintain a healthy ecosystem. That is true in our waterways and our microbiome.