Microbiomes are microbial communities in ecosystems like mammals, including humans, and in other enviornments like soil.
There are several different ways to approach analyzing a microbiome. The most common is to harvest the DNA from the microbes in the sample and determine the species that are present.
Microbiomes have been proven to be a strong link between someone's diet and well-being. Understanding how they function could open doors to treating illnesses like depression.