The sun had yet to come up in Edmonton, Alberta, and it was more than 20 degrees below zero. Tanis Smith layered up anyway, ready to run up and down hundreds of stairs among the trees in the Saskatchewan River Valley.
When she arrived at 6 a.m., 10 other people joined her. It wouldn’t be the last time they risked freezing their toes off to get in a workout before the rest of the world wakes up.
“You’re pretty much just putting everything you own on,” said Smith, an accountant. “If you look at the pictures, you don’t know who you are unless you remember what you were wearing.”
Since that winter of 2013, Smith has rarely missed a workout with the group, called November Project, a network of free outdoor group exercise classes that started …