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Biorhythm Calculator

Track your physical, emotional, and intellectual cycles with this biorhythm calculator. Based on your birth date, it visualizes your daily rhythms to help you understand fluctuations in energy, mood, and mental clarity. Perfect for planning, self-awareness, or curiosity!

Human Biorhythm Calculator

Input Fields
Enter your date of birth
Select the date to calculate your biorhythms
If enabled, the result will update automatically when you change any value.

Biorhythm Cycle Formulas

Formula
\[ \text{Physical} = \sin\left(\frac{2\pi d}{23}\right) \\ \text{Emotional} = \sin\left(\frac{2\pi d}{28}\right) \\ \text{Intellectual} = \sin\left(\frac{2\pi d}{33}\right) \]

where $$d$$ is the number of days since birth.

Each cycle is represented by a sine wave:

  • Physical: 23-day cycle
  • Emotional: 28-day cycle
  • Intellectual: 33-day cycle

Calculation Example

  • Date of Birth: April 10, 1990
  • Target Date: June 5, 2025
  • Days Since Birth: 12,800

Results:

  1. Physical: sin(2Ο€ Γ— 12800 / 23) β†’ ~0.65 (Above average energy)
  2. Emotional: sin(2Ο€ Γ— 12800 / 28) β†’ ~-0.92 (Low emotional state)
  3. Intellectual: sin(2Ο€ Γ— 12800 / 33) β†’ ~0.13 (Neutral thinking performance)

Biorhythm theory suggests that our lives are influenced by natural biological cycles. By understanding where you are in each cycle, you may gain insight into your optimal days for physical activity, emotional interactions, or mental work. While not scientifically proven, it’s a fascinating tool for self-reflection and planning.

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