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Since the collapse of the Soviet Union, medicines cost more in Mongolia and in some remote areas there’s just one doctor for 600 people. We look at a new scheme that aims to get healthcare out to these hard-to-reach areas by giving families a traditional medicine kit.

Also on the show, a look at Black lung disease, or Coalminers' pneumoconiosis, which causes three-quarters of all occupational deaths in China; how the world’s only under-water research habitat, Aquarius, is helping prepare astronauts for life in space; the heroin users of Zanzibar and the dangerous ways they’re trying to get high; and the new research that shows stressed mothers carry their babies differently – cradling them more to the right than to the left.