Winter running breeds some interesting misconceptions, so we decided to get the straight story. We enlisted the help of one of the key scientists studying cold-weather workouts: John Castellani, Ph.D., research physiologist at the U.S. Army Research Institute of Environmental Medicine in Natick, Mass. See if you can separate the truths from the lies below—and stay warm and fit all winter.
Winter running burns more calories.
True or False.
Sorry, put the French fries down. Unless you’re running through snow or mud, you’re not burning any more calories than when you run in any other season. Sure, research shows that shivering and very heavy clothes do cause you to burn more calories. But by “heavy clothes,” researchers are talking about army boots and hiking gear, not your winter shell with titanium thermo-regulating technology.