Biorhythm

According to believers in biorhythms, a person's life is influenced by rhythmic biological cycles that affect one's ability in various domains, such as mental, physical and emotional activity. These cycles begin at birth and oscillate in a steady (sine wave) fashion throughout life; thus, by modeling them mathematically, a person's level of ability in each of these domains can be predicted from day to day.

Most biorhythm models use three cycles: a 23-day "physical" cycle, a 28-day "emotional" cycle, and a 33-day "intellectual" cycle. Each of these cycles varies between high and low extremes sinusoidally, with days where the cycle crosses the zero line described as "critical days" of greater risk or uncertainty.

To use the program, configure a birthday in SETUP tab. Then you can check the biorhythms in WAVES tab. Swipe left or right for previous or next 10 days.