Title: Exercise Alters Our Microbiome
The first sentence of the article: Exercise _may_ change the composition and activity of the trillions of microbes in our guts...
Kind of a title bait.
Also, if you measure your microbiome every day you would see that it varies widely from day to day. So these results based on one measurement before the experiment and one measurement after are not reliable.
Oh, is this going to be like "X changes your brain"? Where it turns out that doing literally anything changes your brain because it's designed to optimize against absolutely any environment.
Kind of a title bait.
Also, if you measure your microbiome every day you would see that it varies widely from day to day. So these results based on one measurement before the experiment and one measurement after are not reliable.