Some folks still pay a lot of attention to them (and go to palm readers as well).

The 3 cycles are:
- Physical--cycle length 23 days.
- Emotional--cycle length 28 days.
- And Mental--cycle length 33 days.

The bad days are supposedly when one of the cycles crosses the midline from positive to negative and vice versa.

If you have 2 cycles simultaneously crossing, you have a really bad day and if 3 cross simultaneously -- look out!

A 4th cycle has also now been described--"Intuitive"--which has a length of 38 days. This cycle has been added to the display in version 2.0.

The program plots your biorhythm graphs from 10 days before the designated date to 10 days after. The designated date (default today) is in the center of the graph.

Because of the sine routine, you can't display days before your actual date of birth. If you want to see your actual birthday plot, add 10 days to your date of birth and then display the graph.

Your birthday will be at the beginning of the display.