Ski icon safe: cell phone is to blame for many falls. Tina Maze: Smartphone use “decreased my performance by 20 percent” “Losing focus while skiing is risky.” “We’re staring at our phones, constantly connected, emailing and messaging, and it all takes up so much valuable time,” says the 40-year-old Slovenian skier.

The list of seriously injured ski stars is long and includes prominent men's names such as Aleksander Aamodt Kilde, Marco Schwarz and Alexis Pinturault.