Derek RogerDerek Roger, PhD, is a psychologist who has spent 30 years researching the causes and effects of stress. He was the founder of the Stress Research Unit at the University of York and is director of the training consultancy Work Skills Centre Ltd. His riginal research findings challenged conventional ideas about stress and resilience and led to the creation of the training program Challenge of Change Resilience Training(TM). Roger has authored more than 100 articles in the scientific press. Read More Read Less