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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This Week in PLOS

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This Week in PLOS

In Cell this week: Leukemia-like disease in soft-shell clams, mNET-seq method for profiling growing transcripts, and more.

While James Watson and Francis Crick are credited for discovering the structure of DNA, Rich proved their theory of a double helix structure was correct when he produced a distinct image of the structure.

Nature News reports that early users of Oxford Nanopore's hand-held MinIon are giddy about the technology and its uses. 

According to MIT Technology Review, Apple is collaborating with researchers to develop apps for consumer DNA testing.