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The biorhythm theory is the pseudoscientific idea that peoples' daily lives are significantly affected by rhythmic cycles with periods of exactly 23, 28 and 33 days, [2] [3] [4] typically a 23-day physical cycle, a 28-day emotional cycle, and a 33-day intellectual cycle.
Within each cycle, the time period during which the process is more active is called the acrophase. [4] When the process is less active, the cycle is in its bathyphase or trough phase. The particular moment of highest activity is the peak or maximum; the lowest point is the nadir. How high (or low) the process gets is measured by the amplitude.
A circadian rhythm (/ s ər ˈ k eɪ d i ə n /), or circadian cycle, is a natural oscillation that repeats roughly every 24 hours.Circadian rhythms can refer to any process that originates within an organism (i.e., endogenous) and responds to the environment (is entrained by the environment).
Overview, including some physiological parameters, of the human circadian rhythm ("biological clock").. Chronobiology is a field of biology that examines timing processes, including periodic (cyclic) phenomena in living organisms, such as their adaptation to solar- and lunar-related rhythms. [1]
Biorhythm may refer to: Biorhythm (pseudoscience), developed by Wilhelm Fliess in the 19th century; Biological rhythm, repetitive cycles that occur in biology ...
Various forms of psychology concentrations are included in the sectors of health psychology, forensic psychology, clinical psychology, industrial and organizational psychology, and school psychology. Health psychology is a discipline that understands the psychological, behavioral, and cultural aspects that affect the physical health and ...
In particular, the function, expression, and meaning of different emotions are hypothesized to be biologically distinct from one another. A theme common to many basic emotions theories is that there should be functional signatures that distinguish different emotions: we should be able to tell what emotion a person is feeling by looking at his ...
Graphical comparison of mood swings, compared with bipolar disorder and cyclothymia. A mood swing is an extreme or sudden change of mood.Such changes can play a positive or a disruptive part in promoting problem solving and in producing flexible forward planning. [1]