Don't jeopardize your skin or your health in order to increase your calorie burn. Cover all of your extremities, and protect yourself from cold and wind.

But be smart when working out in cold weather. Don’t jeopardize your skin or your health in order to increase your calorie burn. Cover all of your extremities, and protect yourself from cold and wind. If you have weak lungs, you’ll want to cover your mouth and nose as well to warm the air you’re breathing. See what temperatures work for you, depending on your outdoor gear. When in doubt, do indoor workouts, and your immune system will thank you for it.