Gretchen Reynolds, Exercise Science Columnist and author of 'The First 20 Minutes' spoke with ATLX about her book, and the newest science that is dispelling fitness myths that surprised even her.

Ultra-runners do what most athletes either can’t do or won’t do. They spend hours every day training for competitions where very few people come to watch. It’s an introspective sport, for sure. Besides the fact that they run hundreds of miles, here are the top five reasons we love endurance runners.

American Strongman competitors are some of toughest competitors out there. ATLX spoke with the founders to learn more about the competitions and the competitors.

Earlier this year, 15-year-old Kristen De Sousa raised money for Nepal’s underprivileged children by completing a marathon on each of the seven continents

While many people wrongly assume it's just about bodybuilding, The Arnold Sports Festival held annually in Columbus, Ohio is set to highlight 50 sports in 2014 and has expanded to both Rio de Janeiro and Madrid.

The United State Association for Blind Athletes continues to provide the blind and visually impaired with opportunities to get involved in sports, from school physical fitness programs all the way to the Paralympics.