Sport Walk organized a February challenge: complete at least 5 kilometers every day, either running or walking, and post it in their Strava group. I decided to give it a try. There was nothing particularly dramatic about it — 5K is roughly where I am right now, so I simply ran or walked it, outdoors or on the treadmill, posted it, and that was it. There were nearly twenty of us doing the challenge, and the really surprising part was that everyone who started actually finished.