Why don't you check it out here and check out your own biorhythm reading.
They describe the biorhythm chart this way:
" What are biorhythms?
Biorhythms are cycles that attempt to describe energy levels or capacities for performance in various areas. The three "primary" biorhythms are:
* physical (23 days), describing your physical energy, reflexes, strength, stamina
* emotional (28 days), describing your emotional stability and empathy
* intellectual (33 days), describing your mental aptitude, creativity and problem-solving capabilities"