threshold

Two years ago, U.S. cross-country skiing star Jessie Diggins was battling a relapse of an eating disorder — an episode that she publicly acknowledged at the time. What she didn’t share until now, though, was how close it came to derailing a year in which she won cross-country skiing’s season title and celebrated the return of the top-level World Cup circuit to the U.S., in her home city of Minneapolis. In the middle of that winter,...