I have just been reading the posts about umpiring many games and the comment about having a noise-induced headache from umpiring many games of indoor hockey has me thinking. The whistle blown properly is an increadibly loud object and if we are subjecting our ears to this noise several hundred times in a game, I wonder whether this could cause long term noise induced hearing damage, especially if we are contained for several matches in a confined and often hard surfaced room. I have not been able to find any standard regarding this as recreational noises are generally not considered, but would this differ for the international umpire? I have always had a hearing loss, so found that after umpiring a game of outdoor, I would suffer from increased tinnitus and temporary worsening of my hearing loss. So I now wear a set of musician's earplugs when umpiring which allows me to hear all sounds I need to hear (eg: speech) normally but attenuates the frequencies of the whistle so I do not suffer from the formentioned symptoms. Am just wondering whether anyone has noticed anything or thought about anything like this, or knows anything about hearing loss in this regard?