October 23, 2017

Do you know autism genes strengthen brain power?

Do you know autism genes strengthen brain power?

Is autism becoming more prevalent because it’s good for the future of humanity? New research suggests evolution is favoring the disorder: A study in PLOS Genetics says certain genetic mutations that are associated with an increased risk of autism were passed on during evolution because they are also associated with improved cognitive abilities.

According to the study, the researchers’ genetic analysis supports previous findings that people carrying autism genes tend to be intelligent, as well as findings about common traits between autism and high IQs — bigger brains that grow faster, better sensory and visual-spatial capabilities, and improved decision-making, to name a few.

Based on what we know about evolution — the process through which a species passes on the genes that make their kind more successful while weeding out the negative traits — genes linked to psychiatric and developmental disorders should be part of that latter group, the study explains, “as they interfere with reproductive fitness.” But in some cases, they are not eradicated.

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The most harmful genes that predispose people to autism, which the study refers to as “rare disruptive variants,” are indeed marked for removal. It’s the more common genetic mutations that have a smaller effect that are making it through the genetic gauntlet. Read more 

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