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Health problems caused by a lack of daily physical exercise cost the world some $67.5 billion (61 billion euros) in 2013 -- more than many countries' GDP, researchers said Thursday. The total was divided between $53.8 billion in healthcare spending and $13.7 billion in lost productivity, according to a study published in The Lancet medical journal.
US President Barack Obama will spearhead a Democratic effort to paint Donald Trump as unfit to be commander-in-chief Wednesday, contrasting the Republican nominee with his vastly more experienced rival Hillary Clinton. Obama, acting as a character reference for his former primary foe and secretary of state, will make the case to Democrats gathered in Philadelphia for their national convention that Clinton is uniquely qualified to be president. "Nothing truly prepares you for the demands of the Oval Office," the two-term president will say, according to excerpts of his speech released by the White House.