I've started running more seriously a couple of months ago, and it's just fantastic. Once I got to the point that 30 minutes became easy, it really started to be its own reward. I get to explore my town - Strava allows me to see the routes of other runners, and if you pick the more experienced ones, they tend to run in beautiful places I'd never see otherwise. I get to see the seasons change. I get out of my head and away from the keyboard. I lost 10kg since summer. Can't recommend it enough.