Published: Thu, March 15, 2018
Medical | By Johnnie Horton

Over 500 genes linked to intelligence identified


Some genes linked to intellectual ability are also associated with living longer, scientists found. These genes have been associated with keeping a person alive for longer as well.

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

Dr David Hill, of the University of Edinburgh said, 'Our study identified a large number of genes linked to intelligence.

When scientists used the genes they found to predict the intelligence of a group of other people, they were able to predict only 7% of the differences between them in terms of the intelligence index. 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.

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SCIENTISTS can measure intelligence by testing saliva after showing for the first time that IQ can be predicted by studying their DNA.

It is known that environment and genes both contribute to the differences observed in people's intelligence, said one of the authors Professor Ian Deary from the University of Edinburgh. These are linked to intelligence.

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

A new research in Britain and America has discovered 500 genes linked to human intelligence. Well nourished children who live in safe environments and are in a stimulating and loving home with minimal pollution tend to score higher at IQ tests compared to children who live in strife ridden atmospheres and are malnourished.

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