December 8 2017
Watch this video to discover a new full-body HIIT workout set to Imagine Dragons' "Believer."
What better place to catch up with the great Kathrine Switzer then right past the Boston Marathon finish line? Switzer will wear number 261 one more time—they retired the number!—at the 2017 Boston Marathon to commemorate that iconic 1967 race where she almost got pulled from the course. Check out our Q & A with Switzer, and don’t forget to cheer for her on Monday!