This week, FasterSkier caught up with U.S. cross-country team member Julia Kern. It turns out catching up with Julia isn’t just hard on the racecourse, but it’s pretty darn challenging in life. No one would begrudge any team member a much needed travel respite after a draining World Cup season. But Julia appears to thrive on movement—she seems to be a living example of Newton’s First Law of Motion— a body in motion will remain...