American biathlete Chloe Levins breaks down one of the Winter Olympics' most demanding and unpredictable sports. Biathlon combines two completely opposite skill sets: precision shooting and Nordic skiing. It's a juxtaposition in itself—balancing the cerebral aspect of shooting with the high-intensity endurance of Nordic skiing where you're at absolute maximum capacity. Your heart is beating out of your chest, lactic acid is flooding your legs, and then you have to calm it all down and hit a target 50 meters away the size of a golf ball.

See Full Page