Release date: 2016-01-15 IQ is related to life, and socioeconomic factors do not fully explain the relationship between IQ and life. Humans live longer than in the past. According to a report released by the World Health Organization (WHO) in 2015, the average life expectancy of Japanese people is 84 years old, and the average life expectancy of Americans is 77 years old. However, it is clear that some people live longer than Others. In the face of death, people are not equal. How to explain this inequality? Epidemiological studies confirm people's intuitive understanding that lifestyles affect life expectancy. A study published in Preventive Medicine in 2012 tracked more than 8,000 people over a five-year period. The study found that non-smoking reduced the risk of death for any cause by 56%, exercise by 47%, and healthy diet by 26%. Italian researchers analyzed the eating habits of residents of the Monticican region of Sicily, which is known for its abundance of centenarians. The survey found that in addition to maintaining physical activity and close contact with relatives, centenarians adhere to the traditional Mediterranean diet. A more surprising finding is that mortality and IQ are closely related: on average, high IQ means longevity. Lan Dearyh of the University of Edinburgh and colleagues used the data from the Scottish Psychological Survey to provide ample evidence for this relationship. In 1932, the Scottish government conducted an IQ test on almost all children aged 11 or so in one day. More than 60 years later, Deary and his colleague Lawrence Whalley in Aberdeen investigated which of the first people who were tested were still alive. These people are now 76 years old. The result is shocking: for every 15 points increase in IQ, the probability of living to this age increases by 21%. For example, the likelihood of a person with IQ 115 living to 76 is 21% higher than that of IQ 100 (average of the average person). Researchers around the world have repeated more than 20 longitudinal studies on the relationship between IQ and mortality, leading to the birth of cognitive epidemiology, which is dedicated to understanding the relationship between cognitive function and health. A major finding in this emerging field is that socioeconomic factors do not fully explain the relationship between IQ and life. In a study of central Scotland, the researchers linked IQ scores from more than 900 volunteers who participated in the 1932 survey to their results in the 1970s National Health Survey. The researchers found that economic status, unemployment, overcrowding and other adverse living conditions, these statistical control variables contributed only 30% of the IQ-mortality correlation. This evidence suggests that genes may contribute to the link between IQ and longevity. A new study by Rosalind Arden and colleagues published in the International Journal of Epidemiology provides the first evidence for this hypothesis. Arden and colleagues identified three studies of twins that simultaneously recorded IQ and mortality (one in the US, one in Germany, and one in Switzerland). (By comparing identical twins or fraternal twins - with 100% or 50% identical genes, respectively, twin studies can isolate the effects of environmental and genetic factors on intelligence or longevity outcomes). They then used statistical analysis to estimate the contribution of genetic factors to IQ and life-related relationships. The results are clear and consistent: Genes can basically explain the correlation between the two. It is still unclear how to explain the impact of genetic factors on the association between IQ and mortality. One possible reason is that people with high IQs choose a healthier lifestyle, such as exercise, wearing a seat belt, and not smoking. Consistent with this hypothesis, Scottish data show that there was no relationship between IQ and smoking behavior in the 1930s and 1940s, because the health risks of smoking at the time were still unknown, but after that, people with high IQ were more inclined. Quit smoking. Or, some of the same genetic factors may affect both IQ and the tendency to engage in certain behaviors. Another possibility is that IQ is an indicator of the overall performance of the body, especially the efficiency of the nervous system. To test this hypothesis, in one study, the researchers looked at the relationship between IQ, mortality, and performance in response time tests. Finally, the test was used to measure brain information processing efficiency. (In the reaction time test, there are four buttons on the reaction box, which number appears on the screen, and the tester presses the button on the reaction box). The researchers found that once a person's response time test score was taken into account, there was no correlation between IQ and mortality. Reaction time can explain the relationship between IQ and mortality. These findings of cognitive epidemiology have potentially profound implications for public health. Combined with factors such as family genetic history, IQ can be used to proactively assess a person's risk of developing health problems and premature death. At the same time, the potential of this intellectual test can also lead to ethical issues. As intellectual researchers immediately pointed out, IQ reflects not a single feature but multiple factors. It includes not only the areas of the brain that you see as "natural" intelligence, such as the prefrontal cortex, but also the endless "non-ability" factors. For example, there is evidence that a person's confidence in his ability to do an intelligence test does affect his actual test scores, which are closely tied to race or gender. Correspondingly, labels labeled "low IQ" or "high IQ" may affect a person's self-esteem. One way to solve this problem is to improve the intelligence test to minimize the impact of non-power factors on IQ. Another way is to educate the public and policy makers about the meaning of IQ scores. IQ's predictions of performance, academic achievement, and mortality are more accurate than any other psychological factor we know. However, IQ is not a fate. It is just one of many factors that influence these outcomes. Other factors such as personality, interest, and motivation also play a huge role. Finally, to make full use of the results of cognitive epidemiology, society will have to weigh the advantages and disadvantages of using IQ to predict health. If the benefits outweigh the disadvantages, one day IQ tests may be used to alleviate health inequalities and help people to live longer. Source: Bio Valley Medical Equipment,Accessories And Consumables,Portable B-ultrasound,Infusion Pump,Syringe Pump Anesthesia Medical Co., Ltd. , https://www.honestymed.com