Scientists analyzed almost a quarter million DNA samples in the UK Biobank and found 538 new genes that appear to have a role in intellectual capabilities.
Polygenic traits like brain function have previously been determined to have a significant heritable component, although it's still unclear exactly how much. The study also found that people with more of the polygenic intelligence genes also had parents who tended to live longer:
We find a novel genetic correlation between intelligence and parental longevity... This indicates that the polygenic load for greater intelligence is associated with greater longevity, using parental longevity as a proxy phenotype.
There's some unfortunate dumbed-down coverage of this that overstates the findings, but it is a remarkable breakthrough nonetheless.
• A combined analysis of genetically correlated traits identifies 187 loci and a role for neurogenesis and myelination in intelligence (Nature via Newsweek)
Image: Silver Blue
I’ve had quite a few fun afternoons playing with dry ice from making spooky fog in the kitchen to exploding plastic bottles in the yard. But I’ve never had the opportunity to pour hot lava over dry ice. In this video, the lava is 1400 °C and the dry ice is -78C°. So cool! And […]
A Boston University team have developed an acoustic, 3D-printed metamaterial whose topology is such that it reflects 94% of human-audible sound; the researchers' demonstration involves inserting a ring of this stuff in a PVC pipe and blasting a speaker down one end: light and air emerges from the other end, but sound does not.
Scientists Lior Appelbaum and David Zada in Israel publish new proof that sleep serves to help our brains repair damage.
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