This article in the Economist reports on research indicating that there may be a genetic basis for optimism. Scientists at the University of Essex in Britain took DNA samples from about 100 people and then tested the subjects by showing them "photographs that may be positive, negative or neutral in tone" and measuring their response. "Sure enough, gene-related variation caused a bias in attention towards positive and negative material," the article says.

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A federal grand jury has indicted Elizabeth Holmes and Ramesh Balwani for alleged wire fraud in conjunction with their activities at Theranos.

Nature News reports that some developers are nervous about GitHub's acquisition by Microsoft.

A direct-to-consumer genetic testing company sent out used spit kits, CNBC reports.

In PLOS this week: comparison of commercial bisulfite kits, new method to predict essential proteins, and more