After John Korir won the 2025 Boston Marathon, runners flocked to his Instagram to learn more about the 28-year-old’s training. Yes, there were the typical postrace photos with trophies and training ...

Korir’s moves, choreographed to music, demonstrated his ability to move with precision and rhythm – and watching these videos left us asking two questions. Why is step aerobics important to Korir, who ...

Add Yahoo as a preferred source to see more of our stories on Google. Credit: Shutterstock I’m no stranger to the basic step-up exercise; you know, the one performed facing a step or bench, which, ...