Bacteria found in gut might help boost physical performance

Scientists say certain species are more abundant in marathon runners after race

From go-faster stripes to energy gels, athletes have long sought ways to boost their performance. Now researchers say bacteria might also offer a helping hand.

Scientists say they have found that certain species of bacteria in the gut appear to be more abundant in marathon runners after a race. They also claim that when such bacteria were transferred into mice, the creatures showed an enhanced athletic performance.