Why do you get headaches? Where does the origin of depression lie? Why are certain people susceptible to colds? What are the emotional roots of cancer? Through which psychological patterns does cholesterol levels in the blood rise? And what can one do to promote recovery? It is known that the psyche and emotions play an important role in the development and healing of diseases. From her sincere concern for the well-being of individuals and humanity, and a deep love for life, Christiane Beerlandt shows us how the seed, the fundamental cause of why one develops a certain illness, lies deep within the human psyche: at the level of a person's most intimate feelings and beliefs, their expectations, self-image, and so on. The most authoritative reference work on the relationship between body and psyche.