Research has found that one of the main reasons many people don't consider a career at sea is because they suffer from 'sea sickness'. Do you suffer from sea sickness? Do we really know what sea sickness is? Is there a cure? Episode 3 of 'Off course' poses these questions and more to Dr Tom Stoffregen, of the University of Minnesota, a world-leading expert in motion sickness.

Hint: there is only one proven cure for sea-sickness, but you're going to have to listen to find out what it is!

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