andrewducker + genetics   508

The Genetics of Staying in School
One reason is to look at how genes and environments interact.“If you did a study like ours 100 years ago, the strongest genetic predictor of education would be how many X chromosomes you had, because society was set up in a way that it was much harder for women to get educated than men,” says Benjamin. Likewise, many of the genes that are associated with education today are likely important “because of how today’s educational system is set up. It requires people to sit at desks for hours, and listen to instructions from a teacher. People who get restless, or are less obedient to authority, will fare less well in that environment.”
genetics  Education 
july 2018 by andrewducker
Massive genetic study shows how humans are evolving
* Analysis of 215,000 people's DNA suggests variants that shorten life are being selected against.
* tested more than 8 million common mutations, and found two that seemed to become less prevalent with age. A variant of the APOE gene, which is strongly linked to Alzheimer’s disease, was rarely found in women over 70. And a mutation in the CHRNA3 gene associated with heavy smoking in men petered out in the population starting in middle age. People without these mutations have a survival edge and are more likely to live longer, the researchers suggest.
* certain groups of genetic mutations, which individually would not have a measurable effect but together accounted for health threats, appeared less often in people who were expected to have long lifespans than in those who weren't. These included predispositions to asthma, high body mass index and high cholesterol.
* Most surprising, however, was the finding that sets of mutations that delay puberty and childbearing are more prevalent in long-lived people.
genetics  age  humans  evolution 
september 2017 by andrewducker
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