Waxes containing PFAS are banned at the Milan-Cortina Games. Three athletes already have been disqualified for using them.

South Korean cross-country skiers, Han Dasom and Lee Eui-jin, were found to have fluoro (fluorinated ski wax) on their skis.

A key source of speed is gone, as concerns over toxic “forever chemicals” reshape Olympic skiing and the science behind winning on snow.

Scientists have found a way to create artificial sugars that could lead to more accurate ways to diagnose and perhaps treat diseases. The collaboration of academic and industry scientists in Europe, ...