People who learn that they carry a genetic marker that increases risk for Alzheimer's disease are not likely to suffer from depression or distress than those who do not, but they are likely to handle the news by increasing efforts to reduce their risk, an ongoing study of the implications and responses to genomic testing has found.

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23andMe's Anne Wojcicki ponders DNA and what it means to be human in a New York Times essay.

A new estimate places the last universal common ancestor to life on Earth as living 3.9 billion years ago, Inverse reports.

In PNAS this week: retinitis pigmentosa gene therapy, role of microbiome in growth stunting, and more.

Bloomberg reports that researchers and drug companies are modeling anti-obesity treatments after the rare genetic condition essential fructosuria.