This is a real thing, having the right kind of biology in your gut makes a huge difference in your efficiency in processing food and such.

And these guys proved it.

“It was reported this week in the journal Microbiome that transferring fecal microbiota from younger to older mice improved the health of the recipient mice’s digestive tracts.”

“These findings demonstrate that the aging gut microbiota drives detrimental changes in the gut–brain and gut–retina axes suggesting that microbial modulation may be of therapeutic benefit in preventing inflammation-related tissue decline in later life.”

This is pretty amazing, not sure who I would want to exchange poop with, though.

Fecal microbiota transfer between young and aged mice reverses hallmarks of the aging gut, eye, and brain