The idea of the five temperaments traces back to an Ancient Greek medical theory that there were four fundamental bodily humors (blood, yellow bile, black bile, and phlegm) which could cause illness if they were out of balance. The terms sanguine, choleric, melancholic, phlegmatic and supine were coined to describe the effect of these humors on human behavior. The five temperaments have remain fairly well known due to their use by counseling, self-help and spirituality authors. Our Temperaments Test is designed to measure and create a match between the taker to one of the five temperaments. It was developed using questions that statistically predicted self identified temperament in samples of people who already has on opinion on which one they were.