Some people in the world have a clearly above-average intelligence quotient( IQ).Researchers have now found that persons with a particularly high IQ rarely die at age 80 years ago. In other words, people with high IQ have an increased life expectancy.
Does our intelligence quotient really affect the life expectancy? The researchers at the University of Edinburgh found that people with a high level of intelligence often die only after 80 years of age. The physicians published the results of their study in the journal "British Medical Journal"( BMT).
researchers examined the data of over 65,000 subjects
For their current study, the British experts analyzed the data of over 65,000 people from Scotland born in 1936.Each of the subjects had participated in an intelligence test at the age of eleven. Afterwards, the health of the subjects was medically monitored for a period of 68 years, the scientists explained. The researchers found that an increased intelligence rate in childhood was associated with a 28 per cent lower risk of death from respiratory disease. In addition, the high intelligence rate also led to a 25 percent reduction in the risk of severe coronary heart disease and a 24 percent reduction in the risk of a stroke, the authors added.
High IQ reduces probability of occurring injuries
People with a high intelligence rate also had a lower probability of dying of injuries, digestive disorders and the effects of occurring dementia, explain the doctors. These results also remain when factors such as socioeconomic status are taken into account.
Why do intelligent people live longer?
There are several theories why very intelligent people have an increased life expectancy. People with a higher IQ care better about their health and the likelihood that these people are starting to smoke is generally lower. People with a higher intelligence quotient also tend to be more physically active and seek a doctor if they feel they are sick, the researchers say.
Lifestyle of intelligent people should be imitated
By the results of the current study we can hopefully find out how people with a high IQ behave throughout their lives, explains author Professor Ian Deary of the University of Edinburgh. Thus, the lifestyle could also be imitated by other people, thereby increasing the likelihood of a somewhat increased life expectancy and a healthier life.
Genetics also has an impact on life expectancy
However, there is also evidence that genetics is involved in the established life expectancy. Very rare genetic variants can play an important role in diminished intelligence and in addition also adversely affect the health of persons, the scientists explain.(as)