Dr. Noah Kaufman: How to Train Like a Ninja Warrior (Even If Youre Over 40)

Published: Oct. 20, 2017, 2 p.m.

Dr. Noah Kaufman, the Ninjadoc, stars on the hit TV show American Ninja Warrior. He's going to tell us what it's like to compete on the world's hardest obstacle courses\u2014and how regular people can get off the couch and start climbing, too.