Discuss the Disruption of Biological Rhythms Free Essays.
Environmental factors influencing biological rhythms tend to change slowly, allowing the internal pacemakers to keep up. However, if the zeitgebers change quickly, problems can occur. Such problems include poor attention, slow reaction time and impaired reasoning skills and can arise from two features of modern life; shift work and jet lag.
Discuss the disruption of biological rhythms 24m One example of disruption of biological rhythms is due to shift work and shift lag.This disrupts your sleeping pattern because it means you are required to be alert at night, so need to sleep during the day.This reverses and disrupts your circadian rhythm, becoming desynchronised where it is no longer entrained by EZ’s.
The disruption of the biological rhythms are thought to be caused by melatonin release being out of step with the new environmental conditions, this can cause drowsiness during the day, and insomnia during the night. Research evidence by Schwartz et al supports this theory. They studied the results of baseball games involving teams on the west.
Discuss the consequences of disrupting biological rhythms Biological rhythms are controlled by endogenous pacemakers, which are our internal biological clocks and these rhythms are also affected by exogenous zeitgebers, for example light, food and noise.
Discuss the disruption of biological rhythms 24m One example of disruption of biological rhythms is due to shift work and shift lag. This disrupts your sleeping pattern because it means you are required to be alert at night, so need to sleep during the day.
Evaluating Circadian Rhythms. Research Support: Research has been conducted to investigate circadian rhythms and the effect of external cues like light on this system.Siffre (1975) found that the absence of external cues significantly altered his circadian rhythm: When he returned from an underground stay with no clocks or light, he believed the date to be a month earlier than it was.
These are rhythms with a period of greater than a day. The menstrual cycle is an example of an infradian rhythm. Infradian rhythms that occur as a result of seasonal changes, for example, migration and hibernation are called circannual rhythms. The menstrual cycle has a period of about 28 days, although the timing can vary according to environmental factors.
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Biological rhythms are the natural cycle of change in our body’s chemicals or functions. It’s like an internal master “clock” that coordinates the other clocks in your body.
However if the oscillators are more resistant this can lead to desynchronisation. The most common type of disruption to biological rhythms are shift work and Jet lag. Shift work described a type of job in which individuals have to be alert at night when they work, and they sleep during the day. This results in reduced quality of sleep because.
The SCN plays a significant role in regulating circadian rhythms, sending information to the pineal gland, which secretes melatonin, a hormone which encourages sleep, helping to regulate our sleep-wake cycle. The role of the SCN as a pacemaker for our biological rhythms has been demonstrated in numerous studies. For example, Ralph et al (1990.
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