Margarita Tareyn has a PhD degree in clinical psychology in the field of the analytical psychosomatics of cancer. She specializes psychoanalysis and psychosomatics in Paris. Since 2010 she is working in collaboration with the Association of Cancer Patients in different projects as setting of guidelines for psychological support for cancer patients, psychological trainings for medical staff and patient’s forums. She is teaching Psycho-Oncology and Psychosomatics in Sofia University and the Institute of Integrative Psychotherapy and Psychosomatics. She is the director of the Unit of Clinical Psychology, Psycho-Oncology and Psychosomatics of Acibadem Tokuda Hospital and Acibadem Mladost Hospital. She is the founder and member of honor of Bulgarian Association of Psycho-Oncology.