We might not be as human as it seems. Human cells make up only 43% of the body’s total cell count. The rest are bacteria, viruses, fungi, archaea and other microscopic organisms that colonize both the inside and outside of our bodies and form the human microbiota.
Even though we are not conscious of it, this microbial material affects our mental and physical well-being in ways science has only just started exploring. The microorganisms facilitate digestion, regulate the immune system, protect us against disease and manufacture vitamins. We live in such inter-dependency with our microbiome that some talk about holobionts, making us an assemblage of a host plus the resident microbes that inhabit it.
Alma Heikkilä. Kiasma Commission by Kordelin 2019. Installation view at Kiasma. Image courtesy the artist