fecal transplants have made the possibly of aging gracefully a little bit messier
researchers have found that transplanting fecal microbiota — the tiny creatures that live in our poop — from young to old can reverse aging in the guts, eyes, and brain of mice.
antibiotics may interfere with high-performance running: study
a group of mice bred for running weren't able to recover to their pre-antibiotic level of ability during the study, but the less athletic mice saw no decrease in running ability.