Dr. Brian Hayes is a microbiologist who explores the vast, unseen world of microorganisms. After earning his Ph.D. from the Massachusetts Institute of Technology (MIT), he has dedicated his career to studying the complex ecosystems of bacteria, viruses, and fungi that live on and inside us—the human microbiome. His research investigates how these tiny organisms influence everything from our digestion to our immune system.

He is a passionate science communicator who excels at making the microscopic world fascinating and relevant. Dr. Hayes believes that understanding this hidden world is one of the next great frontiers in human health. For EduEarth4U, he writes about the latest discoveries in microbiology, explaining the crucial roles these organisms play and how we can cultivate a healthy microbiome.

Based in the biotech hub of Cambridge, Brian is an amateur chef who enjoys experimenting with fermentation, from sourdough bread to kombucha, putting his microbiology knowledge to delicious use.