The Hidden Lives of Brain Microorganisms The human brain is a complex organ composed of billions of neurons and glial cells.
However, recent research has revealed that our cerebral landscape contains more than just these cells – it also harbors a diverse array of microorganisms.
The Microscopic World Within Us Research has shown that the human gut is home to approximately 100 trillion microbial cells, outnumbering human cells by a margin of ten to one.