Biorhythm - Chart Of Your Life vs Biorhythm Graph Usage & Stats

A biorhythm is an attempt to predict various aspects of a person's life through simple mathematical cycles. This is simple, nice and useful application to provide functions: - Draw a chart of your life that provide 7 cycles of bio-rhythm. - Support multiple member in this app. You can check your friend status daily. - Find when do you/your friend have best physical,emotional,intellectual... - Provide a tool to calculate the best time to sleep and wake up. Thanks