Research reported in this week's JAMA looked at the global DNA methylation pattern of 111 Icelandic people and 126 Utahan people at different points in time. The researchers saw that the DNA methylation patterns changed over time -- in both groups, about 10 percent of individuals had more than 20 percent methylation change over time.

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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.