Instructor: Sheri Friedman is a neurologist at UCHealth in Longmont. She started CrossFit at the age of 50 to get in shape. When her gym needed a morning teacher she stepped in and got her ...

Outside, it’s a few degrees south of zero. But inside this CrossFit gym in Grand Forks, N.D., a half-dozen fitness nuts–three men, three women–are just warming up. Tom Harmon, a former Army reservist ...

Jennifer Timmins is killing it in CrossFit with dead lifts, pull-ups and kettle ball swings. And yes, she has a baby bump. She's due in December. "Absolutely it pushes your body," she said. A ...

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