Here at Runner’s World, we love nothing more than trying the latest and greatest shoes, tech, and apparel. That’s why we do so much research and gear testing each year. We only recommend products that ...

No matter your running goals, progress is rarely linear. Usually, there are a few setbacks along the way. This is especially true when it comes to speed, a goal that means something different to ...

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. In the age of AI, there’s no time to wait. Last October, OpenAI cofounder and AI researcher ...

Science is helping to create new training methods and amazing performances by athletes such as swimmer Katie Ledecky. How much faster, stronger, and better can humans get?