BIORHYTHM COMPARISON
Two rhythms.
One moment.
Move through time. Notice what changes.
A date-based model, for curiosity.
Add two birth dates to draw your rhythms.
Drag to explore another day.
A CHECK-IN FOR TWO
What kind of pace feels right
for each of us today?
Compare the curves, then ask about your real experience.
How this model works
The traditional model draws three sine waves from each birth date. The labels are not measurements of your health, mood or ability. Real sleep, feelings, circumstances and communication matter more than a curve.
Model value = sin(2 × PI × elapsedDays / period)
Displayed value = model value × 100
Physical: 23 days. Emotional: 28 days. Intellectual: 33 days. Elapsed days are the calendar-date difference calculated in UTC, so daylight saving does not shift the result. Zero on the birth date is the mathematical starting point. Values are formula outputs, not percentages or personal scores.
The window contains up to 31 calendar days. Dragging changes the selected date; entering a new exploration date recentres the window. The window shifts near birth-date and 2100 boundaries so every selectable date is valid.
| Cycle | You | Them |
|---|---|---|
| Physical23 days | — | — |
| Emotional28 days | — | — |
| Intellectual33 days | — | — |
| Date | You | Them |
|---|
BEYOND THE CURVES
Your connection has more to tell.
Explore your relationship question in a personal written reading by Mira Lin.
Your question · Your context · A PDF to keep
The sample is a five-card Crossroads tarot reading, shown for format. Personal readings explore your context; they are not scientific biorhythm reports.
After comparison, continuing carries only the exploration theme for your review. Birth dates and curve values stay on this page.
Can these curves measure compatibility?
No. This date-based model cannot measure relationship quality, identify a good decision date or predict relationship success. Ask about your actual experience and let that conversation guide your plans.
