NEW YORK (GenomeWeb) – An international team of researchers has homed in on a variant linked to increased obesity among people of African descent.

While lifestyle and culture affect people's risk of developing obesity, it is also thought to be highly heritable, with some estimates placing its heritability at 60 percent. The prevalence of obesity isn't constant across populations — in the US, African Americans have the highest rates of obesity.

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Vivek Murthy is no longer the surgeon general of the US, the Associated Press reports.

People around the globe took to the streets to support science — some with signs.

Parents who learn of their increased genetic risk of disease also contend with telling their children about theirs, the New York Times writes.

In PLOS this week: loci linked to body mass index measurements, long non-coding RNA expression and urothelial carcinoma prognosis, and more.