BIOPSYCHOLOGY, BIOLOGICAL RHYTHM By N., Pam M.S. - April 7, 2013 The variation in an organisms psychological, physical function such as levels of energy, menstration. Also called biorhythm-endogenous rhythm- internal rhythm- life rhythm. See infraradian rhythm. BIOPSYCHOLOGY, BIOLOGICAL RHYTHM: "Joe's sexual desires were all part of his biopsychology-biological rhythm." Related Psychology Terms BIOLOGICAL RHYTHM BIOLOGICAL CLOCK BIORHYTHMS BLOCK BIOLOGY BIOSPHERE RECUPERATIVE THEORY BIOSYNTHESIS BIOCHEMISTRY ACTIVATION THEORY OF EMOTION Cite this page: N., Pam M.S., "BIOPSYCHOLOGY, BIOLOGICAL RHYTHM," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/biopsychology-biological-rhythm/ (accessed April 10, 2020).