In a nutshell is a great description. This easy to use book gives you all the basics. You learn how to chart and understand your biorhythms. It's fun, it's fascinating. I was amazed when I went back and charted my biorhythm pattern for the day a broke my leg. The combination indicated, "Far from your best, really. Your perception is high, but you feel a little sluggish physically. Coordination might be a problem and could lead to minor accidents." Wow, was that right on! The book is great, I'm buying copies for my friends.
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