50 % of those studied listen to unsafe sound levels on personal audio devices . Damaging levels of noise also come from spending time in loud bars or sporting events . Rapper Plan B and Coldplay 's Chris Martin and rapper Plan B wish they 'd protected their ears .
50 % of those studied listen to unsafe sound levels on personal audio devices . Damaging levels of noise also come from spending time in loud bars or sporting events . Coldplay 's Chris Martin and rapper Plan B wish they 'd protected their ears .