Disrupting biological rhythms

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Disrupting biological rythms of sleep- jet lag

If biological rhythms are disrupted it can have negative consequences. This can be seen in the effects of her lag and shift work.
Jet lag- occurs when individual crosses time zones cos it disrupts the circadian and ultrasound rhythms. Only happens when there's sufficient difference between our internal time and external time which would be the local time of destination.
Disrupting our biological rhythms leads to symptoms such as feeling fatigue, headache, sleep disturbances, irritability and stomach disturbances. Plus other body rhythms like body temp may also be disrupted and become desynchronised from sleep wake cycle. Adds to the feeling of disorientation
Most travellers report difficulty adjusting when travelling west to east which makes sense cos when travelling in that direction our day is shortened this is called phase advance and when travelling east to west out day is lengthened this is phase advance like staying up late and we know that it's easier to stay up late than get up early. This results in our body trying to be alert and active when it's trying to sleep.

Research evidence for jetlag- for the effects if disrupting biological rhymes comes from Klein et al who found that east to west passengers took only 1 day to completely readjust whereas west to east travellers to 6 days, it didn't matter whether they were travelling home or away from home. Suggesting that travellers have more difficulty adjusting to phase advance than phase delay.

Reliable- further supporting research for idea that westbound flights are easier to adjust to cones from recht et al who studied result of US baseball teams over 3 years showed team travelling east to west before game won 44% of games but those travelling west to east won 47% . Although major prob of study may be that some teams may simply been better than others, length of study means this variable should have evened itself out.

Biological determinism- explanation is deterministic suggesting jet travellers can't control own sleeping behaviour as they are controlled by internal mechanisms. However people can override physiological drive to sleep by forcing themself to adopt social rhythms of destination and by eating a sleeping at times of the country their visiting eg recent research from Fuller et al suggests period of fasting followed by eating on newtons schedule should help entrain our biological rhythms possibly cos our body clock is reset by foot intake. This shows an impressive ability to excercise control over biological rhythms and adopt to changing environment circumstances.

Practical application melatonin- research findings on circadian rhythm of sleep waking cycle have been applied to try to combat negative effects of disruption. Evidence that melatonin can speed up resyncronisation of circadian rhythm and reduce jet lag. Beaumont et al round melatonin given at bedtime will significantly reduce symptoms of jetlag. Suggesting use of melatonin is an effective practical application of research into circadian rhythms.

Reductionist- belief that jetlag is result of disruption of bio rhythms is reductionist as symptoms if jet lag may be due to other factors eg individual may have slept badly night before travelling due to worry, traveling itself is tiring,bling hours getting to airport before flying, drinking alcohol or coffee, constant noise, low oxygen cabin air and annoying passengers can be cumulative factors. A full description of jet lag requires research into all thes areas as well as bio rhythms.

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Disrupting biological rythms of sleep- jet lag

If biological rhythms are disrupted it can have negative consequences. This can be seen in the effects of her lag and shift work.
Jet lag- occurs when individual crosses time zones cos it disrupts the circadian and ultrasound rhythms. Only happens when there's sufficient difference between our internal time and external time which would be the local time of destination.
Disrupting our biological rhythms leads to symptoms such as feeling fatigue, headache, sleep disturbances, irritability and stomach disturbances. Plus other body rhythms like body temp may also be disrupted and become desynchronised from sleep wake cycle. Adds to the feeling of disorientation
Most travellers report difficulty adjusting when travelling west to east which makes sense cos when travelling in that direction our day is shortened this is called phase advance and when travelling east to west out day is lengthened this is phase advance like staying up late and we know that it's easier to stay up late than get up early. This results in our body trying to be alert and active when it's trying to sleep.

Research evidence for jetlag- for the effects if disrupting biological rhymes comes from Klein et al who found that east to west passengers took only 1 day to completely readjust whereas west to east travellers to 6 days, it didn't matter whether they were travelling home or away from home. Suggesting that travellers have more difficulty adjusting to phase advance than phase delay.

Reliable- further supporting research for idea that westbound flights are easier to adjust to cones from recht et al who studied result of US baseball teams over 3 years showed team travelling east to west before game won 44% of games but those travelling west to east won 47% . Although major prob of study may be that some teams may simply been better than others, length of study means this variable should have evened itself out.

Biological determinism- explanation is deterministic suggesting jet travellers can't control own sleeping behaviour as they are controlled by internal mechanisms. However people can override physiological drive to sleep by forcing themself to adopt social rhythms of destination and by eating a sleeping at times of the country their visiting eg recent research from Fuller et al suggests period of fasting followed by eating on newtons schedule should help entrain our biological rhythms possibly cos our body clock is reset by foot intake. This shows an impressive ability to excercise control over biological rhythms and adopt to changing environment circumstances.

Practical application melatonin- research findings on circadian rhythm of sleep waking cycle have been applied to try to combat negative effects of disruption. Evidence that melatonin can speed up resyncronisation of circadian rhythm and reduce jet lag. Beaumont et al round melatonin given at bedtime will significantly reduce symptoms of jetlag. Suggesting use of melatonin is an effective practical application of research into circadian rhythms.

Reductionist- belief that jetlag is result of disruption of bio rhythms is reductionist as symptoms if jet lag may be due to other factors eg individual may have slept badly night before travelling due to worry, traveling itself is tiring,bling hours getting to airport before flying, drinking alcohol or coffee, constant noise, low oxygen cabin air and annoying passengers can be cumulative factors. A full description of jet lag requires research into all thes areas as well as bio rhythms.

2 of 3

Disrupting biological rythms of sleep- jet lag

If biological rhythms are disrupted it can have negative consequences. This can be seen in the effects of her lag and shift work.
Jet lag- occurs when individual crosses time zones cos it disrupts the circadian and ultrasound rhythms. Only happens when there's sufficient difference between our internal time and external time which would be the local time of destination.
Disrupting our biological rhythms leads to symptoms such as feeling fatigue, headache, sleep disturbances, irritability and stomach disturbances. Plus other body rhythms like body temp may also be disrupted and become desynchronised from sleep wake cycle. Adds to the feeling of disorientation
Most travellers report difficulty adjusting when travelling west to east which makes sense cos when travelling in that direction our day is shortened this is called phase advance and when travelling east to west out day is lengthened this is phase advance like staying up late and we know that it's easier to stay up late than get up early. This results in our body trying to be alert and active when it's trying to sleep.

Research evidence for jetlag- for the effects if disrupting biological rhymes comes from Klein et al who found that east to west passengers took only 1 day to completely readjust whereas west to east travellers to 6 days, it didn't matter whether they were travelling home or away from home. Suggesting that travellers have more difficulty adjusting to phase advance than phase delay.

Reliable- further supporting research for idea that westbound flights are easier to adjust to cones from recht et al who studied result of US baseball teams over 3 years showed team travelling east to west before game won 44% of games but those travelling west to east won 47% . Although major prob of study may be that some teams may simply been better than others, length of study means this variable should have evened itself out.

Biological determinism- explanation is deterministic suggesting jet travellers can't control own sleeping behaviour as they are controlled by internal mechanisms. However people can override physiological drive to sleep by forcing themself to adopt social rhythms of destination and by eating a sleeping at times of the country their visiting eg recent research from Fuller et al suggests period of fasting followed by eating on newtons schedule should help entrain our biological rhythms possibly cos our body clock is reset by foot intake. This shows an impressive ability to excercise control over biological rhythms and adopt to changing environment circumstances.

Practical application melatonin- research findings on circadian rhythm of sleep waking cycle have been applied to try to combat negative effects of disruption. Evidence that melatonin can speed up resyncronisation of circadian rhythm and reduce jet lag. Beaumont et al round melatonin given at bedtime will significantly reduce symptoms of jetlag. Suggesting use of melatonin is an effective practical application of research into circadian rhythms.

Reductionist- belief that jetlag is result of disruption of bio rhythms is reductionist as symptoms if jet lag may be due to other factors eg individual may have slept badly night before travelling due to worry, traveling itself is tiring,bling hours getting to airport before flying, drinking alcohol or coffee, constant noise, low oxygen cabin air and annoying passengers can be cumulative factors. A full description of jet lag requires research into all thes areas as well as bio rhythms.

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