Noun:

Biorhythm,

biorhythm's Usage Examples:

Regulate your sleep-wake rhythm with bright light lamp Common fluorescent and incandescent lights do not aid in regulating a body 's biorhythm.

Regulate your sleep-wake rhythm with bright light lamp Common fluorescent and incandescent lights do not aid in regulating a body's biorhythm.

biorhythm programs to computer games could be deemed relevant.

This triggers a gentle and peaceful wake up response running in tune to your natural biorhythm.

In fact, everything from a Free Quick Crystal Reading to a Free Biorhythm Reading is available, but once again, it's best not to expect too much information.