n. periodic, naturally-occurring cycles which occur as part of a biological process or function. There are three known cycles, namely: physical, emotional, and intellectual. These are present right from birth and they continue all throughout life, cyclically affecting behavior. Also called biological rhythm.

BIORHYTHMS: "The rise and fall of estrogen levels during periods of ovulation, menstruation, and pregnancy only goes to show the cycles that occur with biorhythms. "
Cite this page: N., Pam M.S., "BIORHYTHMS," in, April 7, 2013, (accessed April 18, 2021).