Exploring the Possibility of a Human Brain Microbiome

Recent research has discovered a microbiome in the brains of fish, suggesting the possibility of a similar microbiome in humans. This challenges the long-held belief that the human brain is free of microbes due to the protective blood-brain barrier. The study found bacteria in the brains of salmon and trout, raising questions about their role in neurobiology and whether they could exist in human brains. While the idea remains controversial, it opens new avenues for understanding brain physiology and the potential influence of microbes on human health.