Tuesday, 25 June 2019

What biodiversity loss means for our health

a post by Aaron Bernstein for the OUP blog


“The sun sets over Nature Valley in South Africa.” by redcharlie. Public domain via Unsplash.

Among the great lies I learned in medical school was that a human being was the product of a sperm and an egg. Yes, these gametes are necessary, but they are hardly sufficient to create and sustain a human life. Each one of us stays alive only with the help of trillions of other organisms – the human microbiome – that live on and in every surface of our body exposed to the outside world. Of all the cells that comprise a human body, only two-thirds derive from a sperm and an egg. We can see inklings of what a massive disruption to our relationship with the microorganisms that live within us means to health with the overuse of antibiotics. Antibiotic disruption can foster antimicrobial resistance, weight gain, autoimmune disease, and even perhaps mental health disorders.

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