A deeper way to understand your relationship
Not your typical love quiz — this is a scientific partner compatibility test, personalized and truly unique.
Based solely on your birth dates, this relationship compatibility test reveals your true emotional, physical, and intellectual match — and even your potential for having children together — all without astrology or mysticism.

Numerous studies have shown that our natural biological cycles directly influence mood, energy, and communication.
Understanding how your rhythms align can help prevent conflicts, strengthen empathy, and foster a more harmonious connection over time.
How Does the Couple Compatibility Test Work?
- Just enter both birth dates — we’ll handle the rest.
- Get a detailed, easy-to-read PDF report within 24 hours, personalized to your relationship.
- Ideale sia per le nuove coppie che per le relazioni a lungo termine.

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Original price: $35
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The Science Behind Vital Rhythms and Couple Compatibility
Vital rhythms and couple compatibility are deeply connected: this scientific compatibility test for couples explores how they influence emotional, physical, and intellectual harmony between partners, offering a science-based perspective to better understand relationship dynamics.
Biorhythmic compatibility between two individuals is a real and measurable concept, based on the three fundamental areas of vital rhythms:
- Physical compatibility → relates to energy levels, vitality, and shared rhythm in daily activities.
- Emotional compatibility → concerns emotional sensitivity, affective responsiveness, and empathy.
- Mental compatibility → involves communication, life vision, and intellectual understanding.
“The three primary vital rhythms represent three very different worlds: action, emotion, and thought. A couple may be strong in one and weak in the other two.”
Some Practical Examples
A couple with 100% physical compatibility but low emotional compatibility may work well together in practical or professional settings, but struggle in their emotional connection.
A couple with strong emotional harmony but low mental compatibility (e.g., below 30%) may feel deeply connected emotionally, yet often disagree on decisions, values, or everyday matters.
Using Biorhythmics in the Couple’s Life
Biorhythmic data can be applied in a functional and conscious way within a relationship:
- Couples with uneven compatibility can structure their daily life by focusing on the area where their rhythms are most aligned.
- Understanding your partner’s energetic rhythm fosters greater tolerance, smoother communication, and deeper synchronicity — especially during challenging times.
- This approach can be valuable both when intentionally choosing a partner and when strengthening an existing relationship, offering an energetic foundation for deeper mutual understanding.
Knowing these rhythms is like having practical guidance to navigate your relationship’s ups and downs.
Discovering the alignment between your vital rhythms can reveal relationship dynamics that often go unnoticed.
It’s not superstition, but practical mutual awareness — a science-based compatibility test for couples that helps prevent misunderstandings and build a stronger, more conscious relationship.
Compatibility and Procreation: The Biorhythmological Perspective
IIn some couples, the desire to have children is met with difficulties that have no apparent clinical explanation. According to the biorhythmological model, the origin of this condition may lie in a structural cyclical incompatibility between the two individuals—something that is neither visible nor detectable through traditional medical examinations.
The biorhythmological analysis considers the rhythmic and cyclical nature of life: each individual is governed by three fundamental cycles—physical, emotional, and mental—that interact dynamically from the very moment of birth.
Incompatibilities are not psychological or symbolic — they are energetic, determined by the mathematical interaction of vital cycles fixed at birth.
The Three Rhythms Behind Procreation
The model identifies three primary rhythms:
- 23 days (physical rhythm) – associated with the digestive system and motor function.
- 28 days (emotional rhythm) – linked to the cardiorespiratory system and sensitivity.
- 33 days (mental rhythm) – connected to the nervous system and intellectual functions.
The possibility of generating new life depends exclusively on the presence or absence of a harmonious genocyclic structure between the three rhythms of both partners. This condition is determined through precise calculations of the day-count differences between their birth dates and the rigorous analysis of the remainders with respect to the three fundamental cycles (23, 28, and 33 days). When these cyclical conditions result in a disharmonious genocyclic formula, a state of permanent energetic incompatibility arises, which prevents the formation of a new being—even in the absence of any evident medical causes.
“Although both partners present normal reproductive health, pregnancy never occurs…”
— Livio J. Vinardi, Vital Rhythms.

Biorhythmological Sterility
This form of sterility:
- is not pathological, but cyclical;
- cannot be treated, as it depends exclusively on mathematical and rhythmic laws;
- cannot be interpreted through psychological or symbolic criteria, but only through the mathematical calculation of the difference between the birth dates and the analysis of the remainders of the 23-, 28-, and 33-day cycles.
Such genocyclic incompatibility manifests itself exclusively when the mathematical calculations clearly indicate the absence of the energetic harmony required for procreation.
A Preventive and Conscious Approach
This model is not deterministic; rather, it offers a descriptive, diagnostic, and preventive perspectiveThe biorhythmological approach is neither deterministic nor predictive in the conventional sense, but it offers a mathematical and objective framework for understanding the relationship between vital cycles. It is particularly useful for:
- understanding conception difficulties that cannot be explained by medical science;
- consciously planning the moment of conception in alignment with harmonious cyclical rhythms;
- preemptively verifying the energetic possibility of generating new life through precise and rigorous calculations.
Method and Foundation
The models used are based on Integrated Biorhythmology, which relies exclusively on the mathematical analysis of the 23-, 28-, and 33-day cycles, without any subjective interpretation. The method clearly distinguishes between general percentage-based compatibility (which does not directly influence procreative capacity) and specific genocyclic formulas related to procreation. Every assessment is founded on precise and objective mathematical calculations, excluding arbitrary percentages and symbolic associations.
Procreation is not solely a biological process—it depends on the harmonic structure of vital rhythms.
Through precise calculations, it is possible to reveal permanent energetic incompatibilities.
These are not symbolic interpretations, but mathematical realities for those seeking deeper understanding.

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Original price: $35
80% off
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