A health-positive series that showcases exciting competitions for thrill-seekers.

Some competitors are able to crawl under barbed wire for miles. Others stay awake for days at a time. Readers will learn about some of the world's most extreme

A health-positive series that showcases exciting competitions for thrill-seekers.

Parkour is all about overcoming obstacles, and winning a parkour competition requires strength and creativity. Readers will dive deep into the world of parkour

Extreme snowboarders have mastered every kind of terrain, from natural gullies to the halfpipe. One of the world's fastest-growing sports, snowboarding has even