We understand from past Health Science articles that our gut microbiome plays a big role in our overall health. The Houston Methodist Research Institute studied 33 football players over the course of a season to understand if there is a link between brain injury from concussions and our gut microbiome. They found that following instances of concussions, there was “a decrease in levels of two bacterial species that are normally abundant in healthy individuals.” Because concussions are diagnosed through the patient’s self-report of certain symptoms, they can often be hard to diagnose. This discovery may improve the diagnosis process.