They said his hearing loss was a lot to do with noise. He used to drive one of the biggest cranes that you could imagine, and they said his loss might have been down to that. But he didn’t realize until years after he’d left the industry!
Also, during the war, there were bombs and shooting and other very loud noises that he was exposed to. He used to try to cover his ears, but it would have caused some damage. Because he was so young, just a teenager, his hearing remained okay at the time and the damage showed itself later. So it was definitely noise, but ageing does come into it. A bit of both really.