Abstract: A device for continuously and automatically graphically displaying an individual's biorhythm functions. The device comprises a generally cubicle enclosure in which a plurality of endless loops are rotatably disposed. Separate, preferably translucent loops provided to indicate the physical, emotional, and intellectual biorhythm functions are marked with a sinusoidal waveform corresponding to the particular biorhythm function displayed. The loops over-lie each other throughout a substantial portion of their length to provide a composite graphical biorhythm display which is visible through an illuminated viewing area provided at the front of the device. An internal motor is provided to continuously drive suspension spools on which the loops are mounted.