What is disease? Why do we get sick? Etiology is a groundbreaking work in the field of disease causation. Author Christina Ross, PhD, is a board-certified Polarity Practitioner and biophysicist who studies inflammatory responsewhich she believes is the cause of all physical illness. Disease, Dr. Ross explains, begins long before biochemical imbalances occur in our physical body. Disease begins at the spiritual level, at the very essence of our being, and evolves through our mind and emotions before it is established in our body. Etiology is a study on how to detect disease before it manifests as chronic or incurable. Ross empowers the reader by providing research-based complementary and alternative medicine options, encouraging involvement in ones own healing process.