Human cells make up only 43% of the body’s total cell count. The rest are microscopic colonists.
This includes bacteria, viruses, fungi and archaea (organisms originally misclassified as bacteria). The greatest concentration of this microscopic life is in the dark murky depths of our oxygen-deprived bowels.
It would be naive to think we carry around so much microbial material without it interacting or having any effect on our bodies at all.
Microbial medicine is in its early stages, but some researchers think that monitoring our microbiome will soon become a daily event that provides a brown goldmine of information about our health.