Medicine

Found: more than 500 genes that are linked to intelligence

Found: more than 500 genes that are linked to intelligence

The team of researchers compared DNA variants from over 240,000 participants in the study.

The researchers found that genes linked to intelligence are also linked to a long life - which could explain why intelligent people tend to live longer.

However, even with all these genes, it's still hard to predict a person's intelligence from their genomes.

Colleague and study leader Dr David Hill said intelligence was a "heritable trait" and the study was able to predict it in one study group "using only their DNA". They ended up being able to predict difference in intelligence only 7 percent of the time based on the genes alone.

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Some 538 genes that play a role in intellectual ability have been identified by a team of global researchers, according to a study released Monday by the University of Edinburgh. The "witty genes" - at least some of them - seem to improve the transmission of signals between neurons in different regions of the brain and, in addition, protect against dementia and premature death. He said that in some individuals they could predict intelligence just by looking at the DNA and genetic makeup of the individuals.

"We know that environments and genes both contribute to the differences we observe in people's intelligence", said Ian Deary, from University of Edinburgh. What this study adds it that health and intelligence are also linked. Dr. Hill says that there are two biological processes called "neurogenesis" and "myelination".

Researchers have identified 538 genes that can influence how clever people are - and say they can be obtained using a simple mouth swab.

More than 500 genes associated with intelligence have been identified in the largest study of its kind.


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