Preface: "The family is the basic social cell and a person’s closest environment; it plays the dominant non-medical role in shaping health as it is the primary source of knowledge about nutrition, life-style and disease prevention. The family may determine both healthy habits and anti-health behaviors; it influences the entire duration of a person’s life. It is important to emphasize the extremely significant role of the family in providing care, supporting treatment processes, and giving company to an ill family member."(...)