My biorhythmCompatibilityPricingMagazine

Discover what your biorhythms reveal.

Calculate your compatibility withyour partner

Three vital rhythms describe your physical, emotional and mental balance every day. Understand them to know yourself better, together with the people who matter.

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Three vital rhythms, individually calculated from the moment you were born.

Physical, emotional, intellectual: three measurable, periodic cycles that unfold over time. Understanding them means understanding yourself better.

Personal

A daily portrait of your personal rhythmic trend.

Discover your biorhythm value in each cycle, what it means, and how it will evolve over the next 14 days. A reading built on your own birth data, because every interpretation is calculated individually.

23
Physical
28
Emotional
33
Intellectual

Based on 140+ years of chronobiological research. A structured method, complementary to other awareness practices.

5 relationship types

Discover your tune with the people who matter.

Partners, friends, family, colleagues, acquaintances: every bond creates a unique dynamic between your rhythms and theirs. Our system analyzes it through biorhythms.

Partner
Friend
Family
Work
Acquaintance
23
Physical · 23 days

The rhythm of the physical dimension: energy, vitality and the body's capacity for expression.

28
Emotional · 28 days

The rhythm of the emotional dimension: sensitivity, perception and the movement of your inner world.

33
Intellectual · 33 days

The rhythm of the mental dimension: clarity, focus and the capacity to understand and process.

Interactive Biorhythm Waves

Explore the movement of your Vital Rhythms

Watch how the three cycles unfold over time and how their variations shape your personal trend. Each rhythm follows its own periodicity, in a continuous interplay between body, emotion and thought.

Physical Compatibility
23 days · Tied to the digestive system and motor function.
Emotional Compatibility
28 days · Linked to the cardiorespiratory system and the emotional sphere.
Mental Compatibility
33 days · Connected to the nervous system and cognitive functions.

Over a century of research into time, cyclicity and the individual.

A field shaped by the contribution of several researchers interested in the biorhythms of human beings and the relationship between cycles and behavior.

Your cycles, drawn over 14 days.

A real example of how your biorhythms appear: three overlapping waves, today’s reading, and a compatibility computed from real data.

Trend · next 14 days
Today
PhysicalEmotionalIntellectual
Today
Physical42%
Emotional78%
Intellectual88%
Compatibility preview
M
C
Marc Claire
84%

Harmony in everyday life: this is a precious combination for a couple. You're aligned across all three planes — physical, emotional and intellectual. You have the chance to do things together, feel close, and understand each other with ease. You're, potentially, a great team. The one thing to watch for is the total synchrony: when one of you goes through a low moment, the other is likely going through it too. It's not a flaw, but a trait worth knowing. You can learn to recognize these moments together and give each other room, without expecting too much from one another. You have everything you need to build a stable, deep relationship. Harmony is never a given — it's an opportunity to nurture with presence, listening and everyday care.

Physical
72%
Emotional
91%
Intellectual
68%
What is BYOURIT
A system for reading personal rhythmsMathematical calculations based on the periodic 23, 28, and 33-day cycles, applied to the physical, emotional and intellectual dimensions of the individual. A tool for personal exploration, not a replacement for other paths.
A tool for self-awarenessOffers an interpretive key to your own rhythms and inner dynamics. It does not replace medical or psychological advice: in difficult moments, it's important to consult a qualified professional.
An analysis between people you already knowYou can compare your rhythms with those of the people in your life. We don't connect strangers, we're not a dating app.
An interpretation of the moment, not a predictionWe describe how your cycles are unfolding now and how they evolve over time. We don't predict the future or replace your personal choices.
A structured, interpretable method, grounded in 140 years of research.

Your biorhythm, in thirty seconds.

1

Enter your birth date

Just your birth date: no account, no registration.

2

See your cycles

The chart shows your physical, emotional and intellectual trend over the next 14 days.

3

Read what it means

Each value comes with a clear explanation: what it means and what to expect.

Start free. Go deeper when you want.

No hidden commitments. No credit card to get started. Discover your basic reading and only pay if you want a more complete level of analysis.

Free
€0
Forever
  • Full personal biorhythm
  • Daily reading
  • 1 person for compatibility
  • 14-day forecast — basic interpretation
  • Social share card
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Stories from people who started listening in.

★★★★★

It made me understand why some days are impossible. Now I plan them differently.

★★★★★

Turns out my best friend and I have a particular tune in our emotional cycle. Looking back at our friendship, it made sense.

★★★★★

I use it before big work interviews. The intellectually high days make a difference.

★★★★★

I use it alongside my other wellness practices — and it fits perfectly.

What people ask before starting.

GDPR CompliantHTTPS Secure140 years of scientific researchChronobiology · a discipline since 1986

Your body already knows. Listen.

Two ways to begin. Both take under a minute, both with no strings attached.

"Your cycles are running right now. The question is whether you pay attention."

BYOURIT | Biorhythm Calculator & Couple Compatibility Test