On days you are struggling to get out and run a couple of miles, stop and think for a moment. Gunhild Swanson just ran 100 miles. She is 70 years old. It was the Western States. You can go do a 5k.

http://www.wser.org/course/maps/

http://www.wser.org/course/maps/

Go read her story over at Runner's World!