To combat over-working culture, South Koreans have taken part in the annual 'space-out' competition, where they must simply sit still and do absolutely nothing for 90 minutes. But, they must not fall asleep.

Also: meet the podcasters hoping to promote friendship between Morocco and Algeria, a hungry sea lion who hitched a ride with some rowers in Los Angeles, a potentially groundbreaking new treatment which could help restore movements to paralysed people, and the power of vibrations harnessed in sound therapy.

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