How good of a runner are you and how far are you running right now? If it's less than like 10 miles a day, I'd be worried. I'm not a runner so I can't give you tips, but maybe some of the runners at veganfitness could help you. Good luck!
Yeah I'm also starting to get worried. I've never done running as part of my daily life, so I'm sure as of now I'm only capable of running around 1 mile a day.
I struggle to be a runner, but have lots of runner friends. The best tip I get from them about running long distances is to first, just keep running. You also have to balance the endurance part of the run with the speed part so you need some runs to be longer at a more moderate pace, and some shorter runs like 2-3 miles to focus on speed and intervals. That is about all the info I have. Hope it helps, and don't forget to stretch!
Thanks for the info, I'm starting my training Monday. I'm gonna try running at a longer distance each day at a moderate speed and on the weekends at a faster speed to beat my weekday timings.