As a life long runner, a lover of cross country (where to be successful you need to run in a pack), Christopher McDougal's TED Talk strikes a resounding bell for me. Will I ditch my shoes and start running longer? I don't think so. Ditching shoes to run in an urban environment is too risky. Nevermind the kind of weather we are having, running wouldn't be practical at all.
You do need to walk before you run. And in this weather, if you don't want to venture outside as the sidewalks are not cleared enough, go to the High School. Tue-Wed-Thu evenings beginning about 5:30 (as I recall) there is an indoor walking club. You can walk the halls of the school in the relative comfort of the indoor space and get the healthy exercise your body craves.
As the weather improves, move the walk outside. Walk through your neighborhood, walk to downtown and back, explore side roads in Franklin. There are lots of good opportunities for walking.
When you can walk 4-5 miles comfortably, when you can walk and talk the whole way without breathing heavy, then, and only then, should you consider bringing your walk to a faster pace. After being comfortable at a faster pace for some time (perhaps several weeks), then you can consider taking your faster walking pace into a jog or easy running pace.
What kind of pace is that? Covering the 5 miles in close to an hour. If you can do the 5 miles in under an hour, you should be ready.
Should everyone run? Maybe not, but most everyone should be able to walk.
Franklin, MA