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Cell division rates dwindle as people age, researchers led by Johns Hopkins University School of Medicine's Bert Vogelstein report in the Proceedings of the National Academy of Sciences this week. They collected tissue samples from the colon, duodenum, esophagus, and sinuses of 13 people between the ages of 20 and 29 and of 13 people between the ages of 80 and 89.

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The Washington Post reports on researchers' efforts to determine the effect of an increasingly common SARS-CoV-2 mutation.

Florida Politics reports Florida's law barring life, long-term care, and disability insurers from using genetic information in coverage decisions went into effect at the beginning of July.

A new analysis finds a link between popular media coverage of a scientific study and how often that paper is cited.

In Nature this week: CRISPR approaches to editing plant genomes, way to speed up DNA-PAINT, and more.