The scientists, from Johns Hopkins University in Baltimore, US, believe that their chemical, called C75, stops the production of a hormone that makes the mice hungry.

BBC: Hope for fat control drug

The US-Korea Institute at Johns Hopkins University said its analysis of images "indicates that North Korea continues to develop long-range missiles".

BBC: US institute: North Korea 'testing at rocket site'

That Used to Be Us, written with Michael Mandelbaum, Director of the Foreign Policy program at Johns Hopkins University, the authors assert that the United States no longer leads the world in its ability to innovate and to efficiently create new things and ideas.

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