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Biorhythm

Biorhythm icon

Description

Biorhythm is a calculator for biorhythm theory, a pseudoscientific theory that supposes that a person’s physical, emotional, and intellectual ability fluctuates on 23-, 28-, and 33-day cycles. Given a person’s birth date and the current month, it calculates and displays these three cycles as sine waves labeled P, S, and I.

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