Would You Take a Gut-Bacteria Supplement If it Could Help You...

There are obvious differences between elite endurance athletes and the rest of us, but a microscopic one seems to have an enormous impact. The...

This Is Mark Wahlberg’s Best-Kept Training Secret

Mark Wahlberg’s latest obsession is F45 Training, which has 267 studios in the U.S. and 1,045 worldwide. Every studio runs the same workout, so...