The solstice on December twenty-first brought us the official start of winter. To help keep you going through the holidays and the shorter days of this season, The Exchange brings you inspiration from our discussion with outdoor enthusiasts about continuing to exercising safely, and maybe even picking up a new activity. Plus, we hear from the Mount Washington Observatory, on how summit observers stay fit at the "home of the world's worst weather." Airdate: Thursday, Dec. 24, 2020: Originally