What are Biorhythms?

Biorhythms are biological cycles that influence your physical, emotional, and intellectual states. These cycles begin at birth and continue throughout your life in predictable patterns.

The Three Cycles

  • Physical (23 days): Affects strength, coordination, and overall physical well-being
  • Emotional (28 days): Influences mood, creativity, and emotional sensitivity
  • Intellectual (33 days): Impacts mental alertness, logic, and decision-making ability

How to Use This Calculator

  1. Enter your birth date
  2. Optionally choose a target date (defaults to today)
  3. Click "Calculate Biorhythm"
  4. See where you are in each cycle!

Understanding Your Results

Positive values (above 0%): High point in the cycle - optimal performance

Negative values (below 0%): Low point in the cycle - time to rest and recharge

Near 0% (critical days): Transitional periods - be cautious and mindful

Note: Biorhythms are best used as general guidance. Critical days (when cycles cross zero) are considered times to be extra careful and attentive!