Апр19 19:00 Vladimir ŁAGOWSKIE
Australian scientists have identified: overwork is bad
Almost 7 thousand people – men and women – took part in the study, conducted by scientists at the Melbourne Institute of applied Economics and sociology. Volunteers were 40 scientists such specially scored to determine how efficiently you can work at this age.
In the experiments, the volunteers simulated office activities – read texts, solve logical problems, passed the tests for attentiveness. First, they “worked” full time – about 60 hours per week. Then the working time was reduced to 3 days a week. And was: with such a reduced – schedule productivity became maximum. Employees were given time to do as much as for a full week or even more and better, but not overworked. But stress and fatigue sooner or later started to accompany the work full week and, as a consequence, led to lower labour productivity.
The BBC quotes the researchers: “the Work can be a double-edged sword. On the one hand, it stimulates brain activity, but at the same time processing and certain types of problems can cause fatigue and stress, which, in turn, can adversely affect cognitive abilities”.
And according to Professor of Economics Colin McKenzie, Keio University, processing can cause far greater harm to the brain than no work at all.
Total: three-day, four – rest. All time – and work efficiently and relax to disgust, to happy again to go to work, which does not become hateful.
INSTEAD OF A COMMENT
After the age of 40 the brain begins to shrink
Australian scientists have in fact confirmed the findings of their British colleagues. And suggested the optimal strategy – the best way to use experienced workers taking into account age changes occurring in their brains.
How aging human brain – that it specifically takes place – reviewed by scientists from Stanford University (Stanford University). They did a CT scan 102 volunteers aged from 7 to 85 years. And found that age-related changes affect mainly the so-called white matter – processes of neurons – axons, which serve as a kind of “wires” that connect neurons with each other.
According to the head of research Professor Bryan Wendell (Brian Wandell), different parts of the brain degrade with age in different ways. Some amount of white matter decreases much faster than in others. For example, in the areas responsible for training loss maximum. And is minimal in areas related to the control of movement.
Most rich white substance people aged 30-50 years. On average, how Stanford scientists believe that degradation begins at the age of 40. And to the 85 years of the white matter may be as much as 7-year-old child.
– White matter is approximately half of the brain, explains physiologist Alexei Rubenstein. – But the decline over the years, its volume does not lead to a catastrophic decline of intelligence. After all, the neurons that comprise the gray matter – the basis of intelligence, almost do not suffer.
Degradation of white matter turns the elderly into a kind of a slowpoke due to the fact that they have slowed down the transmission of nerve impulses from neuron to neuron, axon undertaken. As a result, the time required for a decision increases. But the decision itself becomes more deliberate. Up until brilliant.
Elderly thinking about their decision longer young, but the decisions themselves, as a rule, be wiser.
“Slowpoke” aged 40 years and above it is better not to overwork and not fit – will wear out. And 3 working days a week – fun and relaxed – move mountains, figuratively speaking.
IN THE MEANTIME
Women should work at all once a month
Pletzer Belinda (Belinda Pletzer) and her Austrian colleagues from the University of Salzburg (University of Salzburg, Austria) for months scanned the women’s brains in the MRI scanner. And found that they change throughout the menstrual cycle. Namely, in the period of ovulation, when a woman is most prone to conceive. At this time, some areas increase by 2 percent.
In women becomes more gray matter. Particularly in the areas of the brain that is responsible for Analytics and orientation on the terrain and cognitive abilities. Woman and in General smarter. At the same 2 per cent – scientists noticed this little.
Once a month the woman becomes smarter.
According to Austrian researchers, at the dawn of evolution due to the periodic weighting of the brain of the fairer sex during ovulation began better to understand the males. What allowed you to select the most suitable father for their children. It seems that this feature is preserved and civilized women.
However, as stressed by Belinda, the effect is short-lived. After ovulation weight of the brain decreases again. Until the next “intelligence explosion”. So maybe in these days and should go out to work? And in the remaining days to do something not requiring great intellectual effort – for example, housework.
After 40 years I have to work three times a week
