Popular Mechanics' James Meigs and Jerry Beilinson spoke with Dean Kamen -- who has invented many health-related technologies, including prostheses that use microprocessors -- about the pending US legislation on healthcare reform. Kamen says he is worried that a false debate over rationing care is being made instead of facing the consideration that cutting costs doesn't encourage people to develop new therapies.

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Researchers suggest that genetic variations could influence the side effects people experience when using synthetic cannabinoids, the International Business Times reports.

An analysis has examined the makeup of researchers on Twitter and what they share, Nature News reports.

At Stat News, Jim Kozubek argues that the Broad Institute is pushing the boundary of what a nonprofit is.

In PNAS this week: gut microbes may affect honeybee weight, phenotype and gene expression changes in DiGeorge syndrome, and more.