OLON IASIS is the new holistic method aiming at the substantial therapeutic restoration on all levels for humans. As the biopsychosocial model of Health Psychology defines, humans are influenced by a set of factors such as psychology, their environment, social status, lifestyle, and health. ProfDc Dr. Aggeliki Koskeridou develops the OLON IASIS method by evolving that basic model. The OLON IASIS guidebook is for therapists, patients as well as the broad public. The therapists can use it to enrich their knowledge with additional treatment tools and holistic protocols, while the patients and any interested person can apply the offered techniques and exercises for self-improvement, self-treatment, personal growth, improvement of their health status, and wellness. The approaches included stem from Integrative Counseling & Psychotherapy, CBT & Gestalt, Health Psychology, Naturopathy, Herbal Therapy, Clinical Hypnosis, Advanced Homeopathy, Chinese Medicine and the Philosophy of Ayurveda & Yoga, the Traditional Usui Reiki, and the treating techniques of ancient Greeks, after scientific review, research, and experience!