About the Four Temperaments Model

The four temperaments model is one of the oldest personality frameworks in the world. Its roots stretch back over two thousand years, yet it remains a surprisingly useful tool for understanding ourselves and the people around us.

Ancient Origins

The theory originated with Hippocrates, the ancient Greek physician often called the father of medicine, around 400 BC. He proposed that human personality was influenced by four bodily fluids, or "humors": blood, yellow bile, black bile, and phlegm.

A few centuries later, the Roman physician Galen expanded on Hippocrates' work and formalized the connection between the humors and four distinct temperament types:

• Sanguine — associated with blood
• Choleric — associated with yellow bile
• Melancholic — associated with black bile
• Phlegmatic — associated with phlegm

From Medicine to Psychology

While modern medicine has long abandoned the humor theory, the four temperament types proved remarkably enduring. Throughout the Middle Ages and the Renaissance, scholars continued to refine the model. In the twentieth century, psychologists such as Ivan Pavlov and Hans Eysenck connected the temperaments to nervous system properties, giving the framework a more scientific foundation.

The Modern Four Temperaments

Today, the four temperaments are used primarily as a practical tool for self-understanding rather than a clinical diagnosis. Each temperament describes a cluster of behavioral tendencies:

• Sanguine types are sociable, enthusiastic, and expressive.
• Choleric types are decisive, driven, and natural leaders.
• Melancholic types are analytical, detail-oriented, and deeply thoughtful.
• Phlegmatic types are calm, patient, and diplomatic peacemakers.

Most people are a blend of two temperaments, with one dominant and one secondary type shaping their personality.

Why the Model Endures

The four temperaments endure because they offer a simple yet powerful vocabulary for describing differences in human behavior. Unlike more complex personality systems, the temperaments are easy to grasp, quick to apply, and immediately useful for improving communication, relationships, and self-awareness.

Take the free Four Temperaments Test on our homepage to discover your own temperament profile today.