Quick answer: The Zodiac Man (Latin Homo signorum, "man of the signs") is a medieval diagram that maps the twelve zodiac signs onto the human body, head to toe: Aries rules the head and Pisces the feet. Physicians used it as a guide for the timing of treatment. It is the visual heart of classical medical astrology.
For centuries, almost every physician's almanac carried one image: a figure with the twelve signs of the zodiac drawn across the body. It was not decoration. It was a working medical chart, and it sits at the root of the tradition AstroAk reads from.

What the Zodiac Man Is
The Zodiac Man, or Homo signorum, expresses a single idea: each zodiac sign governs a region of the body. This system of body correspondences is called melothesia. It runs in a clean order from the top of the head down to the feet, following the signs from Aries to Pisces.
The image above is the most famous example, painted by the Limbourg brothers around 1411 to 1416 for the Très Riches Heures du Duc de Berry. The figure is shown twice, front and back, ringed by the twelve signs.
The Body, Head to Toe
Read down the body and the signs fall in order:
- Aries rules the head and face
- Taurus the neck and throat
- Gemini the shoulders, arms, and hands
- Cancer the chest and stomach
- Leo the heart and upper back
- Virgo the belly and digestion
- Libra the kidneys and lower back
- Scorpio the reproductive organs
- Sagittarius the hips and thighs
- Capricorn the knees and joints
- Aquarius the calves and ankles
- Pisces the feet
The Four Temperaments in the Corners
The four Latin inscriptions in the corners of the painting are not decorative labels. They group the signs into four sets of three, called triplicities, each sharing an element, a quality, and a direction: this is the same framework classical medicine used to describe temperament. Fire signs (Aries, Leo, Sagittarius) are hot and dry, the choleric temperament. Earth signs (Taurus, Virgo, Capricorn) are cold and dry, the melancholic temperament. Air signs (Gemini, Aquarius, Libra) are hot and moist, the sanguine temperament. Water signs (Cancer, Scorpio, Pisces) are cold and moist, the phlegmatic temperament.
This is the doctrine of the four humours: the same temperament theory, refined by the medieval physician Avicenna, that still shapes a classical reading of a person's constitution and health.
Why It Still Matters
A physician would consult the Zodiac Man to time treatment, avoiding work on a body part while the Moon was passing through the sign that ruled it. This is history and tradition, not clinical guidance; we do not give medical advice. But the underlying idea, reading body and temperament together as one whole, is exactly the classical lens behind the AstroAk health report, which reads your chart through humoral temperament rather than fortune-telling. The same tradition also calculated a dedicated health point, the Part of Sickness, which condenses this bodily map into a single chart degree.
Frequently Asked Questions
What is the Zodiac Man?
It is a medieval diagram, called Homo signorum in Latin, that assigns each of the twelve zodiac signs to a part of the body, from Aries at the head to Pisces at the feet. Physicians used it as a practical reference in medical astrology.
Which sign rules which body part?
The signs run head to toe in order: Aries the head, Taurus the neck, Gemini the arms, Cancer the chest, Leo the heart, Virgo the digestion, Libra the lower back, Scorpio the reproductive organs, Sagittarius the thighs, Capricorn the knees, Aquarius the calves, and Pisces the feet.
Is the Zodiac Man medical advice?
No. It is historical and educational content drawn from the classical tradition, not clinical guidance. For any health concern, always consult a qualified medical professional.