My aunt does ultramarathons, like 100-milers. She does a lot of trail running to train for it and has run into bears and mountain lions. When she's training she spends hours every day out running.
She was always a natural runner though, her first marathon she qualified for Boston and wasn't even running that hard. There is a huge difference between someone who's body seems built to handle running and someone like me, who was not.
Marathons kind of scare me
That’s a lot of strain to put on a body. I’m surprised they’re as popular as they are.