Marathons are already intimidating, so the more you know about training, preparation, and what to do after the race the better. If you want to run a marathon, but you're feeling lost, this visual guide can help get you started.

Long distance running wears out your body, but the real battle happens in your mind. Here's the mental trick an ultramarathoner used to push through the most difficult moments of running 50 marathons in 50 consecutive days.

I ran a marathon a little over a week ago, and while I'm glad I finished, it totally kicked my arse. A new study from the Yale School of Medicine might explain a bit why. Besides the sore muscles, running a marathon wrecks your kidneys for a few days.

This past Sunday I completed the LA Marathon. It was a gruelling 42km battle between me and my own body that I can only sum up as the toughest challenge I've ever overcome. If you've thought about running one yourself, here are some things I learned that might help you go the distance.