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Outline and evaluate infradian and ultradian rhythms

User Rikke
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Final answer:

Infradian and ultradian rhythms are types of biological rhythms with infradian exceeding 24 hours, like menstrual cycles or animal migration, and ultradian occurring multiple times within a day, like sleep cycles. Circadian rhythms match the 24-hour day, affecting sleep-wake patterns and chronotypes, influenced by environment and melatonin.

Step-by-step explanation:

Infradian and ultradian rhythms are types of biological rhythms that describe the natural cycle of physiological activities in living organisms. Infradian rhythms have a cycle length that is longer than a day, such as the female menstrual cycle, which typically lasts about 28 days. An example of this is the yearly cycles of behavior in animals, which include patterns like hibernation or migration.

Ultradian rhythms, on the other hand, occur more than once within a 24-hour period. These include stages of sleep that cycle throughout the night. Circadian rhythms are approximately 24-hour cycles and are the most common rhythms studied. These include sleep-wake cycles, which are linked to environmental light-dark cues and result in variations in body temperature and hormonal levels like melatonin, which induces sleepiness when released in response to darkness.

Research suggests that circadian rhythms can affect a person's chronotype, which is an individual's natural propensity to sleep at a certain time during the 24-hour cycle, making them a "morning person" or a "night owl." This can impact overall well-being and performance due to its influence on sleep regulation.

User Gurpartap Singh
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