Explain this: I was watching the NBA Finals last night and noticed that Glenn "Big Baby" Davis exercises as much as anyone (he's a forward for the Boston Celtics), he just played significant minutes in roughly 100 NBA games this season ... and he's STILL fat! Genetics clearly has something to do with it.
Nevertheless, it's amazing how many people who complain about their own weight never run. They might go to the gym to do yoga or lift weights or something (which may very well be good exercise), but I've found that nothing gets you into shape quite like running. Example: when I played organized sports in high school, did the coach get us into condition by having us do pilates or yoga? No. He made us run until we puked. Every damn day. And it worked, just like it has worked on sports teams across the world for the last 100 years.
Maybe you prefer to run by playing basketball or football or some other sport because you believe, like me, that running just for the sake of running is boring. Or, maybe you just enjoy running. Either way, Run, Forrest, Run.