He graduated with a PhD in Clinical Psychology from the University of Calgary in 1989. He is presently an adjunct professor in Applied Psychology at the university. He has studied chronic pain extensively primarily focusing on myofascial (muscle) pain and the role of the brain in maintaining pain. Dr. D as he is known has published extensively in various scientific journals and has lectured on chronic pain all over the world. His research has won him numerous awards. He is blessed to be married to Mary his wife for 38 years, enjoys gardening, dogs and cats, and is actively involved with Rotary International.