After death ‘The Voice’ talent Yana (29) in Peruvian mountains: what is height sickness and what do you do about it?

During a tour in Peru, Yana de Saedeleer (29) died, known for her participation in ‘The Voice van Vlaanderen’. She may died of the effects of altitude sickness, since she traveled through mountainous areas. But what exactly is that? Who runs the most risk of altitude sickness? What complaints do you experience? And can you prevent or treat it? HLN science journalist Martijn Peters explains.

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