I've been talking with a bunch of people at work about running recently, some of who were pretty active last spring and summer. We had a good group that would go out in the late afternoon for a nice group run, which was both an awesome way to build synergy with the lab personnel, as well as get an extra run in during the day.
Typically there is a couple of people in the lab that don't necessarily enjoy running. They can't fathom that I like going out on long runs as a way to de-stress and think. For them the struggle is real. Every mile is painful. While I don't disagree that running is a brutal mistress, you learn to love it.