Massage is one of the oldest healing arts with Chinese records dating back over thousands of years ago with the first documented descriptions dating back to about 3,000 BC. Traditional Chinese medicine is based on the principle that every illness, ailment or discomfort in the body is due to an imbalance in "Qi." In Japan the practice of medicine mostly consisted of diagnosis and treatment with massage-type methods. The ancient Greeks valued the benefits of massage using it in just about every aspect of daily life. Hippocrates, the 'father of medicine' used massage techniques to treat many medical conditions. He stated that "anyone wishing to study medicine must master the art of massage."