Dr Heidi Haavik is a chiropractor and a neurophysiologist who has worked in the area of human neurophysiology for over 15 years. Heidi has a PhD in human neurophysiology from the University of Auckland. She was named Chiropractor of the year in 2007 by both the New Zealand Chiropractic Association and the New Zealand College of Chiropractic Alumni Association. Her work has been instrumental in building the base of scientific evidence demonstrating the efficacy of chiropractic care in improving people's health and wellbeing. As a researcher, she has investigated the effects of chiropractic adjustments of dysfunctional spinal segments (vertebral subluxations) on somatosensory processing, sensorimotor integration and motor cortical output. "I heard you speak at Parker, and was thrilled beyond words to hear of your work. I have been in practice for 35 years, and have been waiting all my life for your research. Thank you for your enthusiasm, your dedication, and your curiosity. Finally, proof of what I see every day. I was moved to tears, really. (and not by your swearing!)"