It is certainly the case that in the developed world, we are now much less sleep than they were a generation ago. This is not surprising given the increase in technology we can now we can talk into the wee hours.
However, the more I read, the more I am convinced that a lot of modern diseases can be cured if the Company effects that are not getting the proper amount of sleep understood us, both in terms of performance at work ( or school) and the impacton our health, especially the current epidemic of obesity. It can be seen all too easy to sleep as a necessary sacrifice, but think that the reduction, we do not even wake up to enable the truth.
It is generally accepted that we need 7 to 8 hours of sleep per night, and that it has less than six hours sleep a negative impact on productivity and health. It was with some concern that I came across the results of a survey that GMTV was found in 2006 that 19%We have always been the recommended 8 hours sleep per night, and that 42% of people in the south of England will always be less than 5 hours.
New parents and young people are usually the sleep deprived people in society. A Study for Mother & Baby magazine of 3,000 mothers revealed that mothers were an average of only 3.5 hours sleep in the first 4 months of life of a child (as opposed to 6 hours) for their parents and then only 5 hours after 18 months .
Another study of Actimel and Top SanteMagazine in 2007 showed that 75% of women get into her 30s, fortune 6 hours of sleep per night, 85% of 30-something women often feel tired, of which 59% are tired all the time. These statistics are worrying for the health and productivity of our nation!
The U.S. government and National Health Examination Survey in March 2007 (18.000 people) found that those who are less than 6 hours sleep per night 23% more likely to be overweight than those who were sleeping 7 to 9 hours. Thisrose to 50% for those who slept under 5 hours and 73% among those who slept under 4 hours. Boston School of Medicine also showed that those who are less than 5 hours sleep per night 2.5x more likely to diabetes, compared to those who develop slept 7 to 8 hours per night.
The Harvard Business Review found that one weeks equivalent to 4 or 5 hours per night performance impairment induced a blood alcohol content of 0.1% (UK drink driving limit 0.08%). So while we welcome theWork the long hours that we were less impressed when we saw our colleagues in stuffing a few pints of beer before work each day.
The problem is that people do not feel tired, their performance is affected, although to show objective results, it is.
With respect to obesity, if we are tired we crave, rich in carbohydrates, sugar and fatty foods give us a boost. We can also crave caffeine, which can sleep in a vicious cycle downward spiral as caffeine affect our ability to turnNight - the half-life of a cup of coffee can contain up to 6 hours.
By not getting enough sleep, we do not produce enough growth hormone to counter cortisol (stress related), also responsible for the release of sugar into the bloodstream. Excess sugar is then converted into fat and stored around our waists.
Research conducted by Warwick and UCL (as last year) studied 10,308 civil servants from 1985 to 1988 and again in 1992. They found that the risk ofDying of fatal heart disease in men doubled, the average hours of sleep 7 to 5 hours.
It has some significant research to fatigue and safety in industrial settings, especially if it is involved in shift work were (see Loughborough Sleep Research Center and Surrey Sleep Research Center here in the UK). We also understand that fatigue leads to a large number of traffic accidents each year. Fatigue as the main reasons for the other major disasters like the Exxon Valdez stressedThree Mile Iceland, Chernobyl, Challenger space shuttle and bring the Selby rail crash. What other research has shown that fatigue affects the performance?
Studies at the University of Pennsylvania Adults 48 split into 3 groups, each of which sleep either 4, 6 or 8 hours per night. The tasks were then required to test the motor function and memory. Up to 14 Day 4-hour sleepers were 14x more likely to make mistakes and make the 6-hour sleeper 11x more errors than the8-hour group.
This has little impact when a tired employee has to type more letters or words, but it is much more effective if they fall into the wrong numbers in a trading system (as in the city not so long ago), or if The work impacts on the lives of people.
Occupational and Environmental Medicine A 1300 study of doctors (March yielded 2007) that 66% of doctors admit that a mistake at some point because they were tired - 40% in the last 6Months. Performed in the standard tests for the experiment 1 / 3 were classified as drowsy - this rose to 57% in emergency medicine, 40% in anesthesia and 38% in the ICU. Our tired physicians appear to be in the critical places to work, where life and death decisions must be regularly carried out.
We certainly need a better level of education in sleep, sleep habits and sleep hygiene!
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