Dr Aine Tubridy was a medical doctor with a Masters in Psychotherapy from University College, Dublin. She specialised in the management of anxiety and panic at the Menninger Centre in Kansas, incorporating biofeedback technology and relaxation training, and brought this expertise to the cardiac rehabilitation programme at St Vincent's Hospital, Dublin. She also had a practice at the Institute of Psychosocial Medicine in Dun Laoghaire. Dr Tubridy died in 2011, leaving three children, Derry, Aidan and Paula who write a preface to this edition.