Jessie Diggins, age 34, helped break an Olympic medal drought for American cross-country skiers that dated back to the 1970s.

From core strength to full-body endurance, this winter sport works muscles you didn’t even know existed.

Competing against Nordic powerhouses with a fraction of their resources, Mexico's cross-country skier Allan Corona will make his Olympic debut at Milano Cortina after reinventing himself in a sport ...