3. Always have a Plan B.
When running outdoors in the winter, don’t go so far from indoor warmth that you don’t know if you can make it back, warns Philbin. If you get chilled you are on borrowed time, and if your feet are also wet, they will freeze rapidly. Running is demanding on the body even under ideal conditions, and when you add unstable surface conditions, elements such as sleet or snow, and wind, you add to the effort necessary just to do your customary workout. Always be flexible and have a Plan B in case conditions go south.