Why do smart kids live longer?
The study compared childhood intelligence data collected from children aged 6 to 18 with life expectancy, covering more than 400,000 individuals.
"There could be many different reasons for this link. One is that higher intelligence in childhood leads to better educational success, which in turn leads to access to healthier living environments. Another hypothesis is that genetic variants associated with childhood intelligence lead to a body and brain that are more resilient to environmental insults," Dr. David Hill told the Daily Mail.
Research has shown that the benefits of having a high IQ are not limited to academic success but may have a much broader impact.
A previous study found that for every test score increase, the risk of death decreased by 24 percent over follow-up periods of 17 to 69 years. This association was observed similarly in both men and women.
A 2014 study found that people who frequently use profane language have larger vocabularies than their peers who don't. This study, published in the journal Language Sciences, showed that profane language doesn't necessarily mean a person is uneducated.
A separate 2017 study from the University of Rochester also found that people with higher intelligence swear more frequently. However, this contradicts the perception that these individuals are less intelligent or untrustworthy.
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