Ultramarathon legend and bestselling author Dean Karnazes chats with Trey Elling about A RUNNER'S HIGH: MY LIFE IN MOTION. Questions include:

Why does he run such long distances in grueling conditions? (02:05)
Is the extreme growth of ultramarathoning over the past 20+ years a good thing? (02:54)
What's it like in the days after completing an ultra? (08:18)
What is the greatest lesson running has taught him? (14:47)
How special was it for his son to be there to help during Dean's most recent participation in the Western States 100?
Why did he break down crying with less than two miles left in the race? (28:31)
How many more 100-mile races do his legs and mind have left? (30:39)