![]() 'Around 14 per cent of women working more than 48 hours sleep less than 6 hours per night, compared to 9 per cent of women working 31-48. 'The reduction mainly shows up as an increase in short sleep durations rather than a reduction in long durations, and especially among women. Working long hours – over 48 hours each week – is also likely to have a bad effect on your sleep, particularly if you are female, according to a large-scale study, Understanding Society 2011.ĭr Mark Bryan, formerly of the Institute for Social and Economic Research and now a reader in economics at the University of Sheffield, says that the findings were worrying but not unexpected. However, some partial adjustment may occur over successive shifts, but reversion to normal patterns usually occurs on days off. The body never adjusts to the sleep/wake cycle imposed by shift work, even after extended periods. We all have an internal body clock that follows regular patterns throughout a 24 hour period altering many important functions like body temperature, heart rate, blood pressure, respiration rate and hormone production. Shift workers are more likely to suffer poor sleep.Ĭhronic poor sleep affects 60-80 per cent of shift workers and one of the reasons could be that the human body really isn’t designed to be active in the night. Working long hours – over 48 hours each week – is also likely to have a bad effect on your sleep, experts say 'REM sleep typically accounts for 20 to 25 percent of the sleep period.' 'Conversely, lack of REM sleep can have a detrimental effect on concentration, motor skills, and memory. Lack of REM sleep can have a detrimental effect on concentration, motor skills, and memory.ĭr Chris Idzikowski said: 'REM sleep is also important because it can influence memory and serve restorative functions. ![]() Studies also show that alcohol consumption increases the amount of deep sleep, but reduces the amount of all-important REM sleep, which is the period when data from the day is processed and stored safely away. 'You may find yourself wide awake and feeling terrible just when everyone else is fast asleep.' 'Alcohol is metabolised very quickly in the body so its sedative effect wears off and you have unpleasant withdrawal effects – usually around 2am in the morning,' said Professor Morgan. 'But also sleep is a time of enforced rest and recovery, so nutrients are not used up expending energy.'īy the time we grow up, HGH no longer serves this function although it does affect the appetite and supports the immune system throughout life.Īlthough alcohol helps you get to sleep very quickly, you won’t have a good restful night. 'In youngsters, human growth hormone is secreted during deep sleep so there may be a direct effect,' explained Dr Chris Idzikowski, of the Sleep Assessment and Advisory Service. ![]() So when you wake up in the morning, you are fractionally taller for the first hour or so than you will be in the afternoon.Ĭhildren grow most during deep sleep, which is the only time when the body releases plentiful quantities of Human Growth Hormone (HGH). Lying horizontal for hours at a time allows the body’s skeletal structure, cartilage and muscles to stretch out by millimetres. Lying horizontal for hours at a time allows the body’s skeletal structure, cartilage and muscles to stretch out by millimetres
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