Who Needs Sleep?

University of Pennsylvania researchers have tied a new variant in the BHLHE41 gene to some people's ability to get by on less sleep. Previous work from another group implicated a different variant in that gene to sleep deprivation.

As they report in the journal Sleep, UPenn's Allan Pack and his colleagues studied a cohort of twins that was exposed to acute sleep deprivation. The researchers also tested the participants' cognitive skills.

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Customers might want to consider what they might learn about their risk of diseases like Alzheimer's before snagging the genetic testing kits that are on many gift guides this year, NJ.com writes.

The Wall Street Journal reports there is uncertainty surrounding whether He Jiankui's embryo editing did what he said it did.

Stat News reports that the pause on procuring fetal tissue for intramural US National Institutes of Health research will soon affect additional labs there.

In Nature this week: genomic analysis of the invasive fall webworm, amp of constrained coding regions within the human genome, and more.