Exercise can lead to changes in people's overall health and risk of disease, the New York Times Well blog writes, but the mechanism through which those changes arise are not quite clear. "Several striking new studies, however, provide some clarity by showing that exercise seems able to drastically alter how genes operate," Gretchen Reynolds says in the Times.

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A former Synthetic Genomics attorney alleges that the firm discriminated against her and other female employees, according to the San Diego Union-Tribune.

Due to privacy and lab certification questions, the planned giveaway of Orig3n testing kits at a Baltimore Ravens game was suspended.

Alnylam reports positive results from its phase 3 clinical trial of an RNAi-based drug, according to Stat News.

In Cell this week: adult mesenchymal cell populations in mouse lung, genetic diversity in HPV16 and cancer risk protection, and more.