These inherent rhythms are said to control or initiate various biological processes and are classically composed of three cyclic rhythms that are said to govern human behavior and demonstrate innate periodicity in natural physiological change: the physical, the emotional, and the intellectual (or mental) cycles. Others claim there are additional rhythms, some of which may be combinations of the three primary cycles. Some proponents think that biorhythms may be potentially related to bioelectricity and its interactions in the body.
The three classical cycles of biorhythms are endogenous infradian rhythms.
The purpose of mapping the biorhythmic cycles is to enable the calculation of critical days for performing or avoiding various activities.
Biorhythmic study focuses on physiological, emotional, and intellectual processes and its forecasting. Biorhythm phenomena are observable human conditions which can be detailed and explained by biorhythmics. These conditions are bound by the variables that exist in the body. Certain facets of biorhythmics are likened by proponents to concepts found in weather forecasting (commonly known as meteorology).
A former United Airlines pilot and user of the Biorhythms for Windows Valentas Daniunas, " Biorhythms for Windows ; Biorhythms for Windows Pro ". Halloran Software, 2005.
Critics state that biorhythms are based only upon numerological associations. The plausibility of biorhythmics is contested by mathematicians, biologists and other scientists. The most basic assertion is that even if it is assumed that physiological rhythms do exist, it's not clear why they should necessarily begin on the day of one's birth.
To proponents, these discoveries (among others) demonstrate that people are affected by physiological, emotional and intellectual rhythms, though the exact relationships to the biorhythm cycles are not precisely understood. Studies regarding the effects of biorhythms on the human condition are still conducted.
Source: Wikipedia > Biorhythm
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