biorhythm

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bi·o·rhythm

(bī'ō-rith-m),
A biologically inherent cyclic variation or recurrence of an event or state, such as the sleep cycle, circadian rhythms, or periodic diseases.
[bio- + G. rhythmos, rhythm]

biorhythm

(bī′ō-rĭth′əm)
n.
An innate, cyclical biological process or function.

bi′o·rhyth′mic (-rĭth′mĭk) adj.

biorhythm

biorhythm

Alternative medicine
A hypothetical biologic rhythm, which is said to be set at birth.
The biorhythm theory was first proposed by H Swoboda and W Fleiss, a contemporary and colleague of Sigmund Freud; proponents of the biorhythm theory believe there are three distinct cycles: a physical cycle of 23 days—which corresponds to co-ordination, immunity, self-confidence, and strength; an emotional cycle of 28 days; and an intellectual cycle of 33 days, all of which are defined by a sine wave; “critical periods” are believed to exist as an individual crosses the middle of a cycle, either from a high to a low, or vice versa.

Physiology
Cyclical variations in physiologic and biochemical function, level of activity and emotional state. Circadian biorhythms have a cycle of about 24 hrs; ultradian rhythms are < 1 day; infradian rhythms are greater than one day and may be up to weeks or months.

bi·o·rhythm

(bī'ō-ridh-ĕm)
A biologically inherent cyclic variation or recurrence of an event or state, such as the sleep cycle, circadian rhythms, or periodic diseases.
[bio- + G. rhythmos, rhythm]

biorhythm

inherent, cyclical, consistent and predictable variation within a biological variable about its mean, over a given period (see circadian)

biorhythm

see biological rhythm.
References in periodicals archive ?
But under the direction of MIT professor Rosalind Picard, the Media Lab's Affective Computing group has developed computer systems that use biorhythmic sensors attached to a user's body and tiny cameras that record facial gestures to develop individual emotional profiles.
And she was able to identify some of the problems in her relationship with her ex-husband after examining their biorhythmic compatibility.
You might prefer the Biorhythmic Compatibility Calculator, which requires you to enter birth dates for ``Person 1'' and ``Person 2'' and click a button to find out your physical, emotional, mental and overall compatibility.
While acknowledging that "fault is often found with the continual, slightly modified repetition" in his style (Foreword 486), Lawrence says that he uses such repetition to show how biorhythmic impulses are sublimated in thought or language.
Gartner predicts that within five years, consumer wearables will become even more sophisticated; capturing what the user sees, hears or even feels through biorhythmic responses -- with many of these functionalities being incorporated in soon to be released products, such as Google Glass.