Running on empty: marathon runner Tera Moody's struggle with insomnia

Without sleep even the simplest everyday tasks, like driving or writing emails prove to be a challenge. The normally challenging physical tasks we do to stay in shape are nothing short of herculean. 30 minutes on the Stairmaster can feel like a hike up the summit of K2.So what’s it like to run marathons with no sleep?U.S. Olympic hopeful Tera Moody knows the feeling all too well. She’s had