A 30 minute talk with Dr. Robert Lockhart at the 2015 Woodstock Fruit Festival, where he presents a general introduction to his life's work. For those of you who don't know Robert, he's a 71 year old chiropractor / naturopath / yogi with deep experience and knowledge about the cause of optimal health in humans! https://www.youtube.com/watch?v=Vm1YLZlsio8