Description: Ultradian rhythm refers to recurring periods or cycles that repeat throughout a 24-hour day. These rhythms are part of the biological rhythms that regulate various physiological and behavioral functions in living beings. Unlike circadian rhythms, which have a cycle of approximately 24 hours, ultradian rhythms can vary in duration, typically ranging from minutes to several hours. A common example of an ultradian rhythm is the sleep cycle, which includes REM and non-REM sleep phases that repeat several times during the night. These rhythms are essential for the optimal functioning of the organism, as they influence processes such as feeding, physical activity, attention, and hormonal regulation. Understanding ultradian rhythms is crucial in fields such as medicine, psychology, and neuroscience, as they can affect cognitive and emotional performance, as well as overall health. Research on these rhythms has revealed that their dysregulation may be associated with sleep disorders, mental health issues, and other medical conditions, highlighting their importance in the study of biological processes in both humans and animals.
