fivethirtyeight.com · Saved

How Your Gut Affects Your Mood

fivethirtyeight.com/features/gut-week-gut-brain-axis-can-fixing-my-stomach-fix-me

From the page

Saved with the link. Notes from 2007 to 2016 are mostly the page's own words, so this is probably an excerpt.

Illustration by Anna Kovecses At any given moment, you have somewhere between 10 trillion and 100 trillion microorganisms inhabiting your gut